Base | Representation |
---|---|
bin | 10010101111011… |
… | …00101110111000 |
3 | 101221210222010021 |
4 | 21113230232320 |
5 | 310221114410 |
6 | 23333300224 |
7 | 3616145563 |
oct | 1127545670 |
9 | 357728107 |
10 | 157207480 |
11 | 80815341 |
12 | 44794674 |
13 | 267536a1 |
14 | 16c434da |
15 | dc04eda |
hex | 95ecbb8 |
157207480 has 32 divisors (see below), whose sum is σ = 361247040. Its totient is φ = 61544320.
The previous prime is 157207429. The next prime is 157207481. The reversal of 157207480 is 84702751.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (157207481) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39931 + ... + 43690.
It is an arithmetic number, because the mean of its divisors is an integer number (11288970).
Almost surely, 2157207480 is an apocalyptic number.
157207480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
157207480 is an abundant number, since it is smaller than the sum of its proper divisors (204039560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
157207480 is a wasteful number, since it uses less digits than its factorization.
157207480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 83679 (or 83675 counting only the distinct ones).
The product of its (nonzero) digits is 15680, while the sum is 34.
The square root of 157207480 is about 12538.2407059364. The cubic root of 157207480 is about 539.7066078845.
The spelling of 157207480 in words is "one hundred fifty-seven million, two hundred seven thousand, four hundred eighty".
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