Base | Representation |
---|---|
bin | 11101001100110000… |
… | …010101101000101111 |
3 | 2222221000021120200222 |
4 | 131030300111220233 |
5 | 1003202220323043 |
6 | 22223025041555 |
7 | 2156641642451 |
oct | 351460255057 |
9 | 88830246628 |
10 | 31352511023 |
11 | 12329747639 |
12 | 60aba862bb |
13 | 2c58657392 |
14 | 1735d182d1 |
15 | c3773cd68 |
hex | 74cc15a2f |
31352511023 has 2 divisors, whose sum is σ = 31352511024. Its totient is φ = 31352511022.
The previous prime is 31352510999. The next prime is 31352511053. The reversal of 31352511023 is 32011525313.
It is a weak prime.
It is an emirp because it is prime and its reverse (32011525313) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 31352511023 - 210 = 31352509999 is a prime.
It is a Sophie Germain prime.
It is a junction number, because it is equal to n+sod(n) for n = 31352510983 and 31352511001.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (31352511053) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15676255511 + 15676255512.
It is an arithmetic number, because the mean of its divisors is an integer number (15676255512).
Almost surely, 231352511023 is an apocalyptic number.
31352511023 is a deficient number, since it is larger than the sum of its proper divisors (1).
31352511023 is an equidigital number, since it uses as much as digits as its factorization.
31352511023 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2700, while the sum is 26.
The spelling of 31352511023 in words is "thirty-one billion, three hundred fifty-two million, five hundred eleven thousand, twenty-three".
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