Base | Representation |
---|---|
bin | 1001001001100101001… |
… | …0000100010010010111 |
3 | 120000201212121101022000 |
4 | 2102121102010102113 |
5 | 10033411230112410 |
6 | 200113505210343 |
7 | 14233216654653 |
oct | 2223122042227 |
9 | 500655541260 |
10 | 157190472855 |
11 | 60733a188a9 |
12 | 2656a9309b3 |
13 | 11a91185120 |
14 | 787272da63 |
15 | 414eebedc0 |
hex | 2499484497 |
157190472855 has 64 divisors (see below), whose sum is σ = 314030545920. Its totient is φ = 74021447808.
The previous prime is 157190472853. The next prime is 157190472911. The reversal of 157190472855 is 558274091751.
157190472855 is a `hidden beast` number, since 1 + 5 + 7 + 1 + 90 + 472 + 85 + 5 = 666.
It is not a de Polignac number, because 157190472855 - 21 = 157190472853 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (157190472853) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1906749 + ... + 1987478.
It is an arithmetic number, because the mean of its divisors is an integer number (4906727280).
Almost surely, 2157190472855 is an apocalyptic number.
157190472855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
157190472855 is a deficient number, since it is larger than the sum of its proper divisors (156840073065).
157190472855 is a wasteful number, since it uses less digits than its factorization.
157190472855 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3894277 (or 3894271 counting only the distinct ones).
The product of its (nonzero) digits is 3528000, while the sum is 54.
The spelling of 157190472855 in words is "one hundred fifty-seven billion, one hundred ninety million, four hundred seventy-two thousand, eight hundred fifty-five".
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