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157122016187 = 4719123817351
BaseRepresentation
bin1001001001010100110…
…0111011001110111011
3120000120002210102101212
42102111030323032323
510033241214004222
6200103022033335
714231426046563
oct2222514731673
9500502712355
10157122016187
11606a9311344
122654ba1884b
1311a7cc36c16
1478675cdda3
154148e9b6e2
hex249533b3bb

157122016187 has 16 divisors (see below), whose sum is σ = 161394868224. Its totient is φ = 152888820000.

The previous prime is 157122016171. The next prime is 157122016201. The reversal of 157122016187 is 781610221751.

It is a cyclic number.

It is not a de Polignac number, because 157122016187 - 24 = 157122016171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157122016127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21370562 + ... + 21377912.

It is an arithmetic number, because the mean of its divisors is an integer number (10087179264).

Almost surely, 2157122016187 is an apocalyptic number.

157122016187 is a deficient number, since it is larger than the sum of its proper divisors (4272852037).

157122016187 is a wasteful number, since it uses less digits than its factorization.

157122016187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9970.

The product of its (nonzero) digits is 47040, while the sum is 41.

The spelling of 157122016187 in words is "one hundred fifty-seven billion, one hundred twenty-two million, sixteen thousand, one hundred eighty-seven".

Divisors: 1 47 191 2381 7351 8977 111907 345497 454771 1404041 17502731 21374237 65989927 822628357 3343021621 157122016187