Base | Representation |
---|---|
bin | 11100100010000111… |
… | …110110010111111001 |
3 | 2221002011101202201012 |
4 | 130202013312113321 |
5 | 1000221114113022 |
6 | 22024034403305 |
7 | 2133135235430 |
oct | 344207662771 |
9 | 87064352635 |
10 | 30637254137 |
11 | 11aa1a27546 |
12 | 5b30430535 |
13 | 2b73405759 |
14 | 16a8d2c117 |
15 | be4a54de2 |
hex | 7221f65f9 |
30637254137 has 8 divisors (see below), whose sum is σ = 35758983936. Its totient is φ = 25701769152.
The previous prime is 30637254077. The next prime is 30637254143. The reversal of 30637254137 is 73145273603.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30637254137 - 228 = 30368818681 is a prime.
It is a super-2 number, since 2×306372541372 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30637254094 and 30637254103.
It is not an unprimeable number, because it can be changed into a prime (30634254137) 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, 46560848 + ... + 46561505.
It is an arithmetic number, because the mean of its divisors is an integer number (4469872992).
Almost surely, 230637254137 is an apocalyptic number.
It is an amenable number.
30637254137 is a deficient number, since it is larger than the sum of its proper divisors (5121729799).
30637254137 is an equidigital number, since it uses as much as digits as its factorization.
30637254137 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 93122407.
The product of its (nonzero) digits is 317520, while the sum is 41.
The spelling of 30637254137 in words is "thirty billion, six hundred thirty-seven million, two hundred fifty-four thousand, one hundred thirty-seven".
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