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45979491 = 3411572381
BaseRepresentation
bin1010111101100…
…1011101100011
310012112000000010
42233121131203
543232320431
64321300003
71065550665
oct257313543
9105460003
1045979491
1123a55088
1213494603
1396ab3cc
14616c535
154083846
hex2bd9763

45979491 has 16 divisors (see below), whose sum is σ = 63227808. Its totient is φ = 29702400.

The previous prime is 45979481. The next prime is 45979499. The reversal of 45979491 is 19497954.

It is not a de Polignac number, because 45979491 - 25 = 45979459 is a prime.

It is a super-2 number, since 2×459794912 = 4228227185238162, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45979491.

It is not an unprimeable number, because it can be changed into a prime (45979499) 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, 18121 + ... + 20501.

It is an arithmetic number, because the mean of its divisors is an integer number (3951738).

Almost surely, 245979491 is an apocalyptic number.

45979491 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

45979491 is a deficient number, since it is larger than the sum of its proper divisors (17248317).

45979491 is a wasteful number, since it uses less digits than its factorization.

45979491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2582.

The product of its digits is 408240, while the sum is 48.

The square root of 45979491 is about 6780.8178710241. The cubic root of 45979491 is about 358.2515293824.

The spelling of 45979491 in words is "forty-five million, nine hundred seventy-nine thousand, four hundred ninety-one".

Divisors: 1 3 41 123 157 471 2381 6437 7143 19311 97621 292863 373817 1121451 15326497 45979491