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157140155670 = 23519972622937
BaseRepresentation
bin1001001001011001001…
…0000111110100010110
3120000121100221000002120
42102112102013310112
510033310334440140
6200104510520410
714232036166431
oct2222622076426
9500540830076
10157140155670
1160708580853
1226555b06106
1311a83918544
147869b92818
15414a8811d0
hex2496487d16

157140155670 has 32 divisors (see below), whose sum is σ = 377325368928. Its totient is φ = 41883042048.

The previous prime is 157140155657. The next prime is 157140155687. The reversal of 157140155670 is 76551041751.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 1251559 + ... + 1371378.

It is an arithmetic number, because the mean of its divisors is an integer number (11791417779).

Almost surely, 2157140155670 is an apocalyptic number.

157140155670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157140155670 is an abundant number, since it is smaller than the sum of its proper divisors (220185213258).

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

157140155670 is a wasteful number, since it uses less digits than its factorization.

157140155670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624944.

The product of its (nonzero) digits is 147000, while the sum is 42.

The spelling of 157140155670 in words is "one hundred fifty-seven billion, one hundred forty million, one hundred fifty-five thousand, six hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 1997 3994 5991 9985 11982 19970 29955 59910 2622937 5245874 7868811 13114685 15737622 26229370 39344055 78688110 5238005189 10476010378 15714015567 26190025945 31428031134 52380051890 78570077835 157140155670