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1369718694 = 23331818231
BaseRepresentation
bin101000110100100…
…0011111110100110
310112110100220211000
41101221003332212
510301121444234
6343525454130
745641262651
oct12151037646
93473326730
101369718694
11643196a23
12322871346
1318aa08746
14cdcac898
15803b2899
hex51a43fa6

1369718694 has 32 divisors (see below), whose sum is σ = 3142010880. Its totient is φ = 441844200.

The previous prime is 1369718657. The next prime is 1369718699. The reversal of 1369718694 is 4968179631.

It is a super-2 number, since 2×13697186942 = 3752258601386131272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 1369718694.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1369718699) 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, 407442 + ... + 410789.

It is an arithmetic number, because the mean of its divisors is an integer number (98187840).

Almost surely, 21369718694 is an apocalyptic number.

1369718694 is an abundant number, since it is smaller than the sum of its proper divisors (1772292186).

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

1369718694 is a wasteful number, since it uses less digits than its factorization.

1369718694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818273 (or 818267 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 1369718694 is about 37009.7108067599. The cubic root of 1369718694 is about 1110.5645192785.

The spelling of 1369718694 in words is "one billion, three hundred sixty-nine million, seven hundred eighteen thousand, six hundred ninety-four".

Divisors: 1 2 3 6 9 18 27 31 54 62 93 186 279 558 837 1674 818231 1636462 2454693 4909386 7364079 14728158 22092237 25365161 44184474 50730322 76095483 152190966 228286449 456572898 684859347 1369718694