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157836 = 22371879
BaseRepresentation
bin100110100010001100
322000111210
4212202030
520022321
63214420
71225110
oct464214
9260453
10157836
11a8648
1277410
1356ac3
1441740
1531b76
hex2688c

157836 has 24 divisors (see below), whose sum is σ = 421120. Its totient is φ = 45072.

The previous prime is 157831. The next prime is 157837. The reversal of 157836 is 638751.

It is a plaindrome in base 16.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (157831) by changing a digit.

157836 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 856 + ... + 1023.

2157836 is an apocalyptic number.

It is an amenable number.

157836 is an abundant number, since it is smaller than the sum of its proper divisors (263284).

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

157836 is a wasteful number, since it uses less digits than its factorization.

157836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893 (or 1891 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 157836 is about 397.2857913392. The cubic root of 157836 is about 54.0424905625.

The spelling of 157836 in words is "one hundred fifty-seven thousand, eight hundred thirty-six".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 1879 3758 5637 7516 11274 13153 22548 26306 39459 52612 78918 157836