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157902052 = 227111753569
BaseRepresentation
bin10010110100101…
…10010011100100
3102000010020220011
421122112103210
5310410331202
623400220004
73625100560
oct1132262344
9360106804
10157902052
118114a170
1244a6a604
1326937889
1416d846a0
15dce0bd7
hex96964e4

157902052 has 96 divisors (see below), whose sum is σ = 372314880. Its totient is φ = 56709120.

The previous prime is 157901981. The next prime is 157902053. The reversal of 157902052 is 250209751.

It is not an unprimeable number, because it can be changed into a prime (157902053) 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 31 ways as a sum of consecutive naturals, for example, 277224 + ... + 277792.

It is an arithmetic number, because the mean of its divisors is an integer number (3878280).

Almost surely, 2157902052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157902052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186157440).

157902052 is an abundant number, since it is smaller than the sum of its proper divisors (214412828).

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

157902052 is a wasteful number, since it uses less digits than its factorization.

157902052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 157902052 is about 12565.9083237146. The cubic root of 157902052 is about 540.5002816853.

It can be divided in two parts, 157 and 902052, that added together give a palindrome (902209).

The spelling of 157902052 in words is "one hundred fifty-seven million, nine hundred two thousand, fifty-two".

Divisors: 1 2 4 7 11 14 17 22 28 34 44 53 68 77 106 119 154 187 212 238 308 371 374 476 569 583 742 748 901 1138 1166 1309 1484 1802 2276 2332 2618 3604 3983 4081 5236 6259 6307 7966 8162 9673 9911 12518 12614 15932 16324 19346 19822 25036 25228 30157 38692 39644 43813 60314 67711 69377 87626 106403 120628 135422 138754 175252 211099 212806 270844 277508 331727 422198 425612 512669 663454 744821 844396 1025338 1326908 1489642 2050676 2322089 2979284 3588683 4644178 5639359 7177366 9288356 11278718 14354732 22557436 39475513 78951026 157902052