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101956 = 2271359
BaseRepresentation
bin11000111001000100
312011212011
4120321010
511230311
62104004
7603151
oct307104
9164764
10101956
116a668
124b004
133753a
1429228
1520321
hex18e44

101956 has 12 divisors (see below), whose sum is σ = 181440. Its totient is φ = 50120.

The previous prime is 101939. The next prime is 101957. The reversal of 101956 is 659101.

It is not an unprimeable number, because it can be changed into a prime (101957) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 105 + ... + 463.

It is an arithmetic number, because the mean of its divisors is an integer number (15120).

2101956 is an apocalyptic number.

It is an amenable number.

101956 is a deficient number, since it is larger than the sum of its proper divisors (79484).

101956 is a wasteful number, since it uses less digits than its factorization.

101956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 101956 is about 319.3054963511. The cubic root of 101956 is about 46.7165679361.

It can be divided in two parts, 10195 and 6, that added together give a palindrome (10201).

The spelling of 101956 in words is "one hundred one thousand, nine hundred fifty-six".

Divisors: 1 2 4 71 142 284 359 718 1436 25489 50978 101956