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157287205348 = 22713479193781
BaseRepresentation
bin1001001001111100001…
…1000100100111100100
3120000222121121220022221
42102133003010213210
510034111011032343
6200131242402124
714235503120620
oct2223703044744
9500877556287
10157287205348
1160783588409
1226597200344
1311aa82235a0
147881510180
15415872b5ed
hex249f0c49e4

157287205348 has 48 divisors (see below), whose sum is σ = 345980404224. Its totient is φ = 60899598720.

The previous prime is 157287205291. The next prime is 157287205349. The reversal of 157287205348 is 843502782751.

It is a happy number.

It is a super-2 number, since 2×1572872053482 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a junction number, because it is equal to n+sod(n) for n = 157287205295 and 157287205304.

It is not an unprimeable number, because it can be changed into a prime (157287205349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4579783 + ... + 4613998.

It is an arithmetic number, because the mean of its divisors is an integer number (7207925088).

Almost surely, 2157287205348 is an apocalyptic number.

It is an amenable number.

157287205348 is an abundant number, since it is smaller than the sum of its proper divisors (188693198876).

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

157287205348 is a wasteful number, since it uses less digits than its factorization.

157287205348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9193852 (or 9193850 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 52.

The spelling of 157287205348 in words is "one hundred fifty-seven billion, two hundred eighty-seven million, two hundred five thousand, three hundred forty-eight".

Divisors: 1 2 4 7 13 14 26 28 47 52 91 94 182 188 329 364 611 658 1222 1316 2444 4277 8554 17108 9193781 18387562 36775124 64356467 119519153 128712934 239038306 257425868 432107707 478076612 836634071 864215414 1673268142 1728430828 3024753949 3346536284 5617400191 6049507898 11234800382 12099015796 22469600764 39321801337 78643602674 157287205348