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2978052 = 2237112293
BaseRepresentation
bin1011010111000100000100
312121022010020
423113010010
51230244202
6143455140
734212240
oct13270404
95538106
102978052
111754500
12bb74b0
1380367c
14577420
153dc5bc
hex2d7104

2978052 has 72 divisors (see below), whose sum is σ = 8758848. Its totient is φ = 770880.

The previous prime is 2978047. The next prime is 2978071. The reversal of 2978052 is 2508792.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10018 + ... + 10310.

22978052 is an apocalyptic number.

2978052 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2978052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4379424).

2978052 is an abundant number, since it is smaller than the sum of its proper divisors (5780796).

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

2978052 is a wasteful number, since it uses less digits than its factorization.

2978052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 2978052 is about 1725.7033348754. The cubic root of 2978052 is about 143.8723792127.

The spelling of 2978052 in words is "two million, nine hundred seventy-eight thousand, fifty-two".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 66 77 84 121 132 154 231 242 293 308 363 462 484 586 726 847 879 924 1172 1452 1694 1758 2051 2541 3223 3388 3516 4102 5082 6153 6446 8204 9669 10164 12306 12892 19338 22561 24612 35453 38676 45122 67683 70906 90244 106359 135366 141812 212718 248171 270732 425436 496342 744513 992684 1489026 2978052