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11292778952 = 2371331500389
BaseRepresentation
bin10101000010001101…
…00010000111001000
31002011000100121110022
422201012202013020
5141111422411302
65104323240012
7546563015540
oct124106420710
932130317408
1011292778952
11487552aa74
122231b19008
1310ac797730
14791b24320
154616238a2
hex2a11a21c8

11292778952 has 64 divisors (see below), whose sum is σ = 26900966400. Its totient is φ = 4323352320.

The previous prime is 11292778943. The next prime is 11292778957. The reversal of 11292778952 is 25987729211.

It is a junction number, because it is equal to n+sod(n) for n = 11292778894 and 11292778903.

It is not an unprimeable number, because it can be changed into a prime (11292778957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227627 + ... + 272762.

It is an arithmetic number, because the mean of its divisors is an integer number (420327600).

Almost surely, 211292778952 is an apocalyptic number.

It is an amenable number.

11292778952 is an abundant number, since it is smaller than the sum of its proper divisors (15608187448).

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

11292778952 is a wasteful number, since it uses less digits than its factorization.

11292778952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500446 (or 500442 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 53.

The spelling of 11292778952 in words is "eleven billion, two hundred ninety-two million, seven hundred seventy-eight thousand, nine hundred fifty-two".

Divisors: 1 2 4 7 8 13 14 26 28 31 52 56 62 91 104 124 182 217 248 364 403 434 728 806 868 1612 1736 2821 3224 5642 11284 22568 500389 1000778 2001556 3502723 4003112 6505057 7005446 13010114 14010892 15512059 26020228 28021784 31024118 45535399 52040456 62048236 91070798 108584413 124096472 182141596 201656767 217168826 364283192 403313534 434337652 806627068 868675304 1411597369 1613254136 2823194738 5646389476 11292778952