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70081092 = 22332389317
BaseRepresentation
bin1000010110101…
…01101001000100
311212212111012000
410023111221010
5120420043332
610542025300
71510452024
oct413255104
9155774160
1070081092
1136616a64
121b578230
1311699703
149443a84
156244b7c
hex42d5a44

70081092 has 96 divisors (see below), whose sum is σ = 192326400. Its totient is φ = 22023936.

The previous prime is 70081087. The next prime is 70081103. The reversal of 70081092 is 29018007.

It is a super-2 number, since 2×700810922 = 9822718911824928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 220918 + ... + 221234.

It is an arithmetic number, because the mean of its divisors is an integer number (2003400).

Almost surely, 270081092 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70081092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96163200).

70081092 is an abundant number, since it is smaller than the sum of its proper divisors (122245308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70081092 is a wasteful number, since it uses less digits than its factorization.

70081092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 70081092 is about 8371.4450365513. The cubic root of 70081092 is about 412.2876129795.

Adding to 70081092 its reverse (29018007), we get a palindrome (99099099).

It can be divided in two parts, 7008 and 1092, that added together give a square (8100 = 902).

The spelling of 70081092 in words is "seventy million, eighty-one thousand, ninety-two".

Divisors: 1 2 3 4 6 9 12 18 23 27 36 46 54 69 89 92 108 138 178 207 267 276 317 356 414 534 621 634 801 828 951 1068 1242 1268 1602 1902 2047 2403 2484 2853 3204 3804 4094 4806 5706 6141 7291 8188 8559 9612 11412 12282 14582 17118 18423 21873 24564 28213 29164 34236 36846 43746 55269 56426 65619 73692 84639 87492 110538 112852 131238 169278 196857 221076 253917 262476 338556 393714 507834 648899 761751 787428 1015668 1297798 1523502 1946697 2595596 3047004 3893394 5840091 7786788 11680182 17520273 23360364 35040546 70081092