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158307868 = 22296720369
BaseRepresentation
bin10010110111110…
…01011000011100
3102000212212120101
421123321120130
5311011322433
623413030444
73631410655
oct1133713034
9360785511
10158307868
11813a7054
1245025424
1326a4a4c4
141704c52c
15dd7107d
hex96f961c

158307868 has 24 divisors (see below), whose sum is σ = 290883600. Its totient is φ = 75280128.

The previous prime is 158307823. The next prime is 158307869. The reversal of 158307868 is 868703851.

158307868 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1583078682 = 50122762141410848, which contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158307869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2413 + ... + 17956.

It is an arithmetic number, because the mean of its divisors is an integer number (12120150).

Almost surely, 2158307868 is an apocalyptic number.

It is an amenable number.

158307868 is a deficient number, since it is larger than the sum of its proper divisors (132575732).

158307868 is a wasteful number, since it uses less digits than its factorization.

158307868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20469 (or 20467 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 158307868 is about 12582.0454616887. The cubic root of 158307868 is about 540.9629229649.

The spelling of 158307868 in words is "one hundred fifty-eight million, three hundred seven thousand, eight hundred sixty-eight".

Divisors: 1 2 4 29 58 67 116 134 268 1943 3886 7772 20369 40738 81476 590701 1181402 1364723 2362804 2729446 5458892 39576967 79153934 158307868