Base | Representation |
---|---|
bin | 1001001011001110000… |
… | …0110000110000010111 |
3 | 120001212112122201211020 |
4 | 2102303200300300113 |
5 | 10040311404021011 |
6 | 200225305212223 |
7 | 14250142264035 |
oct | 2226340606027 |
9 | 501775581736 |
10 | 157630532631 |
11 | 6093a365270 |
12 | 26672191073 |
13 | 11b313b1520 |
14 | 78b4d61555 |
15 | 4178948006 |
hex | 24b3830c17 |
157630532631 has 16 divisors (see below), whose sum is σ = 246917758080. Its totient is φ = 88184913120.
The previous prime is 157630532581. The next prime is 157630532659. The reversal of 157630532631 is 136235036751.
It is not a de Polignac number, because 157630532631 - 215 = 157630499863 is a prime.
It is a super-3 number, since 3×1576305326313 (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (157630532671) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183718141 + ... + 183718998.
It is an arithmetic number, because the mean of its divisors is an integer number (15432359880).
Almost surely, 2157630532631 is an apocalyptic number.
157630532631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
157630532631 is a deficient number, since it is larger than the sum of its proper divisors (89287225449).
157630532631 is a wasteful number, since it uses less digits than its factorization.
157630532631 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 367437166.
The product of its (nonzero) digits is 340200, while the sum is 42.
The spelling of 157630532631 in words is "one hundred fifty-seven billion, six hundred thirty million, five hundred thirty-two thousand, six hundred thirty-one".
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