Base | Representation |
---|---|
bin | 101101111110111… |
… | …1110101001001111 |
3 | 10222112101012110100 |
4 | 1123331332221033 |
5 | 11130000132111 |
6 | 413035142143 |
7 | 53144030364 |
oct | 13375765117 |
9 | 3875335410 |
10 | 1542974031 |
11 | 721a72255 |
12 | 3708a4953 |
13 | 1b788a6b1 |
14 | 108ccc46b |
15 | 906d7756 |
hex | 5bf7ea4f |
1542974031 has 12 divisors (see below), whose sum is σ = 2280572008. Its totient is φ = 1004727024.
The previous prime is 1542973997. The next prime is 1542974101. The reversal of 1542974031 is 1304792451.
It is not a de Polignac number, because 1542974031 - 26 = 1542973967 is a prime.
It is a super-2 number, since 2×15429740312 = 4761537720680777922, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1542974131) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1993120 + ... + 1993893.
Almost surely, 21542974031 is an apocalyptic number.
1542974031 is a deficient number, since it is larger than the sum of its proper divisors (737597977).
1542974031 is a wasteful number, since it uses less digits than its factorization.
1542974031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3987062 (or 3987059 counting only the distinct ones).
The product of its (nonzero) digits is 30240, while the sum is 36.
The square root of 1542974031 is about 39280.7081275274. The cubic root of 1542974031 is about 1155.5432514986.
The spelling of 1542974031 in words is "one billion, five hundred forty-two million, nine hundred seventy-four thousand, thirty-one".
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