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157122016185 = 3531557653929
BaseRepresentation
bin1001001001010100110…
…0111011001110111001
3120000120002210102101210
42102111030323032321
510033241214004220
6200103022033333
714231426046561
oct2222514731671
9500502712353
10157122016185
11606a9311342
122654ba18849
1311a7cc36c14
1478675cdda1
154148e9b6e0
hex249533b3b9

157122016185 has 64 divisors (see below), whose sum is σ = 260649031680. Its totient is φ = 80738672640.

The previous prime is 157122016171. The next prime is 157122016201. The reversal of 157122016185 is 581610221751.

It is not a de Polignac number, because 157122016185 - 24 = 157122016169 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 169129801 + ... + 169130729.

It is an arithmetic number, because the mean of its divisors is an integer number (4072641120).

Almost surely, 2157122016185 is an apocalyptic number.

157122016185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157122016185 is a deficient number, since it is larger than the sum of its proper divisors (103527015495).

157122016185 is a wasteful number, since it uses less digits than its factorization.

157122016185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2178.

The product of its (nonzero) digits is 33600, while the sum is 39.

The spelling of 157122016185 in words is "one hundred fifty-seven billion, one hundred twenty-two million, sixteen thousand, one hundred eighty-five".

Divisors: 1 3 5 15 31 93 155 465 557 653 929 1671 1959 2785 2787 3265 4645 8355 9795 13935 17267 20243 28799 51801 60729 86335 86397 101215 143995 259005 303645 363721 431985 517453 606637 1091163 1552359 1818605 1819911 2587265 3033185 5455815 7761795 9099555 11275351 16041043 18805747 33826053 48123129 56376755 56417241 80205215 94028735 169130265 240615645 282086205 337896809 1013690427 1689484045 5068452135 10474801079 31424403237 52374005395 157122016185