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15242904552 = 233635121023
BaseRepresentation
bin11100011001000110…
…00100001111101000
31110100022012210002110
432030203010033220
5222204140421202
611000312202320
71046506356651
oct161443041750
943308183073
1015242904552
116512249887
122b549993a0
13158bc75c65
14a485b4528
155e32e626c
hex38c8c43e8

15242904552 has 16 divisors (see below), whose sum is σ = 38107261440. Its totient is φ = 5080968176.

The previous prime is 15242904533. The next prime is 15242904557. The reversal of 15242904552 is 25540924251.

It is a super-3 number, since 3×152429045523 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 15242904552.

It is not an unprimeable number, because it can be changed into a prime (15242904557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317560488 + ... + 317560535.

It is an arithmetic number, because the mean of its divisors is an integer number (2381703840).

Almost surely, 215242904552 is an apocalyptic number.

15242904552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15242904552 is an abundant number, since it is smaller than the sum of its proper divisors (22864356888).

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

15242904552 is a wasteful number, since it uses less digits than its factorization.

15242904552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635121032 (or 635121028 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 15242904552 in words is "fifteen billion, two hundred forty-two million, nine hundred four thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 635121023 1270242046 1905363069 2540484092 3810726138 5080968184 7621452276 15242904552