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157002830 = 25234091669
BaseRepresentation
bin10010101101110…
…10110001001110
3101221102120101122
421112322301032
5310143042310
623325040542
73614334125
oct1126726116
9357376348
10157002830
1180695606
12446b6152
13266b14aa
1416bccabc
15dbb4555
hex95bac4e

157002830 has 32 divisors (see below), whose sum is σ = 295790400. Its totient is φ = 59887872.

The previous prime is 157002827. The next prime is 157002851. The reversal of 157002830 is 38200751.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 157002830.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93236 + ... + 94904.

It is an arithmetic number, because the mean of its divisors is an integer number (9243450).

Almost surely, 2157002830 is an apocalyptic number.

157002830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157002830 is a deficient number, since it is larger than the sum of its proper divisors (138787570).

157002830 is a wasteful number, since it uses less digits than its factorization.

157002830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 157002830 is about 12530.0770149269. The cubic root of 157002830 is about 539.4723125874.

The spelling of 157002830 in words is "one hundred fifty-seven million, two thousand, eight hundred thirty".

Divisors: 1 2 5 10 23 46 115 230 409 818 1669 2045 3338 4090 8345 9407 16690 18814 38387 47035 76774 94070 191935 383870 682621 1365242 3413105 6826210 15700283 31400566 78501415 157002830