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156913950 = 23522234691
BaseRepresentation
bin10010101101001…
…01000100011110
3101221021001110210
421112211010132
5310132221300
623323113250
73613514034
oct1126450436
9357231423
10156913950
1180634856
1244672826
132667cbbb
1416ba8554
15db98050
hex95a511e

156913950 has 48 divisors (see below), whose sum is σ = 390974976. Its totient is φ = 41647200.

The previous prime is 156913931. The next prime is 156913957. The reversal of 156913950 is 59319651.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 156913899 and 156913908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156913957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31105 + ... + 35795.

It is an arithmetic number, because the mean of its divisors is an integer number (8145312).

Almost surely, 2156913950 is an apocalyptic number.

156913950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 156913950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195487488).

156913950 is an abundant number, since it is smaller than the sum of its proper divisors (234061026).

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

156913950 is a wasteful number, since it uses less digits than its factorization.

156913950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4929 (or 4924 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 39.

The square root of 156913950 is about 12526.5298466894. The cubic root of 156913950 is about 539.3704941469.

The spelling of 156913950 in words is "one hundred fifty-six million, nine hundred thirteen thousand, nine hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 223 446 669 1115 1338 2230 3345 4691 5575 6690 9382 11150 14073 16725 23455 28146 33450 46910 70365 117275 140730 234550 351825 703650 1046093 2092186 3138279 5230465 6276558 10460930 15691395 26152325 31382790 52304650 78456975 156913950