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157157301450 = 23522345552841
BaseRepresentation
bin1001001001011101001…
…1100001110011001010
3120000122120012002200110
42102113103201303022
510033324232121300
6200110322215150
714232335010222
oct2222723416312
9500576162613
10157157301450
1160717221716
122655b7b44b6
1311a8733c786
14786c177082
15414c11b550
hex24974e1cca

157157301450 has 48 divisors (see below), whose sum is σ = 406695773376. Its totient is φ = 40086499200.

The previous prime is 157157301407. The next prime is 157157301451. The reversal of 157157301450 is 54103751751.

It is a junction number, because it is equal to n+sod(n) for n = 157157301399 and 157157301408.

It is not an unprimeable number, because it can be changed into a prime (157157301451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22772971 + ... + 22779870.

It is an arithmetic number, because the mean of its divisors is an integer number (8472828612).

Almost surely, 2157157301450 is an apocalyptic number.

157157301450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157157301450 is an abundant number, since it is smaller than the sum of its proper divisors (249538471926).

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

157157301450 is a wasteful number, since it uses less digits than its factorization.

157157301450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45552879 (or 45552874 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 39.

The spelling of 157157301450 in words is "one hundred fifty-seven billion, one hundred fifty-seven million, three hundred one thousand, four hundred fifty".

Divisors: 1 2 3 5 6 10 15 23 25 30 46 50 69 75 115 138 150 230 345 575 690 1150 1725 3450 45552841 91105682 136658523 227764205 273317046 455528410 683292615 1047715343 1138821025 1366585230 2095430686 2277642050 3143146029 3416463075 5238576715 6286292058 6832926150 10477153430 15715730145 26192883575 31431460290 52385767150 78578650725 157157301450