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157220000875 = 537224380107
BaseRepresentation
bin1001001001101100001…
…0101101010001101011
3120000210221011120010101
42102123002231101223
510033441310012000
6200120442130231
714234025646330
oct2223302552153
9500727146111
10157220000875
1160749656723
12265787b0977
1311a97323322
147876618987
1541528a3e6a
hex249b0ad46b

157220000875 has 32 divisors (see below), whose sum is σ = 224343415296. Its totient is φ = 107758591200.

The previous prime is 157220000863. The next prime is 157220000887. The reversal of 157220000875 is 578000022751.

157220000875 is a nontrivial binomial coefficient, being equal to C(560750, 2).

It is an interprime number because it is at equal distance from previous prime (157220000863) and next prime (157220000887).

It is not a de Polignac number, because 157220000875 - 215 = 157219968107 is a prime.

It is a super-3 number, since 3×1572200008753 (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1922572 + ... + 2002678.

It is an arithmetic number, because the mean of its divisors is an integer number (7010731728).

Almost surely, 2157220000875 is an apocalyptic number.

157220000875 is the 560749-th triangular number and also the 280375-th hexagonal number.

157220000875 is the 186917-th centered nonagonal number.

157220000875 is a deficient number, since it is larger than the sum of its proper divisors (67123414421).

157220000875 is an equidigital number, since it uses as much as digits as its factorization.

157220000875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82372 (or 82362 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 37.

The spelling of 157220000875 in words is "one hundred fifty-seven billion, two hundred twenty million, eight hundred seventy-five", and thus it is an aban number.

Divisors: 1 5 7 25 35 125 175 875 2243 11215 15701 56075 78505 80107 280375 392525 400535 560749 1962625 2002675 2803745 10013375 14018725 70093625 179680001 898400005 1257760007 4492000025 6288800035 22460000125 31444000175 157220000875