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105143692 = 2231847933
BaseRepresentation
bin1100100010001…
…01110110001100
321022211212000211
412101011312030
5203404044232
614233332204
72414464243
oct621056614
9238755024
10105143692
1154395015
122b267064
1318a24b04
14dd6d95a
15936da47
hex6445d8c

105143692 has 12 divisors (see below), whose sum is σ = 189937216. Its totient is φ = 50875920.

The previous prime is 105143671. The next prime is 105143693. The reversal of 105143692 is 296341501.

It is a super-2 number, since 2×1051436922 = 22110391934781728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (105143693) 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, 423843 + ... + 424090.

Almost surely, 2105143692 is an apocalyptic number.

It is an amenable number.

105143692 is a deficient number, since it is larger than the sum of its proper divisors (84793524).

105143692 is a wasteful number, since it uses less digits than its factorization.

105143692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847968 (or 847966 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 105143692 is about 10253.9598204791. The cubic root of 105143692 is about 471.9845046622.

The spelling of 105143692 in words is "one hundred five million, one hundred forty-three thousand, six hundred ninety-two".

Divisors: 1 2 4 31 62 124 847933 1695866 3391732 26285923 52571846 105143692