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672056541 = 33131914691
BaseRepresentation
bin101000000011101…
…100010011011101
31201211121000021000
4220003230103131
52334021302131
6150404300513
722440246342
oct5003542335
91654530230
10672056541
113153a4032
121690a1739
13a93074c0
14653827c9
153e002ce6
hex280ec4dd

672056541 has 16 divisors (see below), whose sum is σ = 1072227520. Its totient is φ = 413573040.

The previous prime is 672056537. The next prime is 672056557. The reversal of 672056541 is 145650276.

It is a happy number.

672056541 is a `hidden beast` number, since 67 + 2 + 0 + 56 + 541 = 666.

It is not a de Polignac number, because 672056541 - 22 = 672056537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 672056496 and 672056505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672056141) 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, 956995 + ... + 957696.

It is an arithmetic number, because the mean of its divisors is an integer number (67014220).

Almost surely, 2672056541 is an apocalyptic number.

It is an amenable number.

672056541 is a deficient number, since it is larger than the sum of its proper divisors (400170979).

672056541 is a wasteful number, since it uses less digits than its factorization.

672056541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914713 (or 1914707 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 672056541 is about 25924.0533289067. The cubic root of 672056541 is about 875.9283930021.

The spelling of 672056541 in words is "six hundred seventy-two million, fifty-six thousand, five hundred forty-one".

Divisors: 1 3 9 13 27 39 117 351 1914691 5744073 17232219 24890983 51696657 74672949 224018847 672056541