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157702059990 = 23253191549121
BaseRepresentation
bin1001001011011111000…
…1100111011111010110
3120002001112020200220200
42102313301213133112
510040433211404430
6200240342241330
714252001251436
oct2226761473726
9502045220820
10157702059990
1160976779892
1226692126246
1311b431662c7
1478c06602c6
15417ed76460
hex24b7c677d6

157702059990 has 48 divisors (see below), whose sum is σ = 410154597216. Its totient is φ = 42040627200.

The previous prime is 157702059947. The next prime is 157702059997. The reversal of 157702059990 is 99950207751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157702059997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12630 + ... + 561750.

It is an arithmetic number, because the mean of its divisors is an integer number (8544887442).

Almost surely, 2157702059990 is an apocalyptic number.

157702059990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157702059990 is an abundant number, since it is smaller than the sum of its proper divisors (252452537226).

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

157702059990 is a wasteful number, since it uses less digits than its factorization.

157702059990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552325 (or 552322 counting only the distinct ones).

The product of its (nonzero) digits is 1786050, while the sum is 54.

The spelling of 157702059990 in words is "one hundred fifty-seven billion, seven hundred two million, fifty-nine thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 3191 6382 9573 15955 19146 28719 31910 47865 57438 95730 143595 287190 549121 1098242 1647363 2745605 3294726 4942089 5491210 8236815 9884178 16473630 24710445 49420890 1752245111 3504490222 5256735333 8761225555 10513470666 15770205999 17522451110 26283676665 31540411998 52567353330 78851029995 157702059990