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157920876002 = 248725772
BaseRepresentation
bin1001001100010011010…
…0010101010111100010
3120002121202222201001102
42103010310111113202
510041410221013002
6200314200234402
714260266204131
oct2230464252742
9502552881042
10157920876002
1160a7924356a
122673346ba02
1311b795aab36
14790173d918
15419419aa02
hex24c4d155e2

157920876002 has 18 divisors (see below), whose sum is σ = 237780819297. Its totient is φ = 78661736064.

The previous prime is 157920875993. The next prime is 157920876011. The reversal of 157920876002 is 200678029751.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (157920875993) and next prime (157920876011).

It can be written as a sum of positive squares in 2 ways, for example, as 92052166801 + 65868709201 = 303401^2 + 256649^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=280999.

It is a super-3 number, since 3×1579208760023 (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 273692738 + ... + 273693314.

Almost surely, 2157920876002 is an apocalyptic number.

157920876002 is a deficient number, since it is larger than the sum of its proper divisors (79859943295).

157920876002 is an frugal number, since it uses more digits than its factorization.

157920876002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2130 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 157920876002 in words is "one hundred fifty-seven billion, nine hundred twenty million, eight hundred seventy-six thousand, two".

Divisors: 1 2 487 577 974 1154 237169 280999 332929 474338 561998 665858 136846513 162136423 273693026 324272846 78960438001 157920876002