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70520058 = 2357191091
BaseRepresentation
bin1000011010000…
…00110011111010
311220200210100000
410031000303322
5121023120213
610555253430
71514260560
oct415006372
9156623300
1070520058
1136896844
121b74a276
13117c145b
149519a30
1562cec73
hex4340cfa

70520058 has 96 divisors (see below), whose sum is σ = 190794240. Its totient is φ = 19070640.

The previous prime is 70520033. The next prime is 70520059. The reversal of 70520058 is 85002507.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (70520059) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64093 + ... + 65183.

It is an arithmetic number, because the mean of its divisors is an integer number (1987440).

Almost surely, 270520058 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70520058, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95397120).

70520058 is an abundant number, since it is smaller than the sum of its proper divisors (120274182).

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

70520058 is a wasteful number, since it uses less digits than its factorization.

70520058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134 (or 1122 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 70520058 is about 8397.6221634460. The cubic root of 70520058 is about 413.1466353909.

The spelling of 70520058 in words is "seventy million, five hundred twenty thousand, fifty-eight".

Divisors: 1 2 3 6 7 9 14 18 19 21 27 38 42 54 57 63 81 114 126 133 162 171 189 243 266 342 378 399 486 513 567 798 1026 1091 1134 1197 1539 1701 2182 2394 3078 3273 3402 3591 4617 6546 7182 7637 9234 9819 10773 15274 19638 20729 21546 22911 29457 32319 41458 45822 58914 62187 64638 68733 88371 124374 137466 145103 176742 186561 206199 265113 290206 373122 412398 435309 530226 559683 618597 870618 1119366 1237194 1305927 1679049 1855791 2611854 3358098 3711582 3917781 5037147 7835562 10074294 11753343 23506686 35260029 70520058