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1360687428 = 223238779749
BaseRepresentation
bin101000100011010…
…0111000101000100
310111211101002020200
41101012213011010
510241313444203
6343004130500
745501436512
oct12106470504
93454332220
101360687428
11639088671
1231b836a30
13188b95ab9
14cc9db4b2
157e6cb9a3
hex511a7144

1360687428 has 36 divisors (see below), whose sum is σ = 3440755500. Its totient is φ = 453398976.

The previous prime is 1360687423. The next prime is 1360687457. The reversal of 1360687428 is 8247860631.

1360687428 is a `hidden beast` number, since 13 + 606 + 8 + 7 + 4 + 28 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 266930244 + 1093757184 = 16338^2 + 33072^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1360687421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134698 + ... + 144446.

Almost surely, 21360687428 is an apocalyptic number.

1360687428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1360687428 is an abundant number, since it is smaller than the sum of its proper divisors (2080068072).

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

1360687428 is a wasteful number, since it uses less digits than its factorization.

1360687428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13636 (or 13631 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 1360687428 is about 36887.4969061334. The cubic root of 1360687428 is about 1108.1182922704.

The spelling of 1360687428 in words is "one billion, three hundred sixty million, six hundred eighty-seven thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 3877 7754 9749 11631 15508 19498 23262 29247 34893 38996 46524 58494 69786 87741 116988 139572 175482 350964 37796873 75593746 113390619 151187492 226781238 340171857 453562476 680343714 1360687428