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641152473 = 31319865253
BaseRepresentation
bin100110001101110…
…011010111011001
31122200102220211220
4212031303113121
52303113334343
6143342042253
721613464123
oct4615632731
91580386756
10641152473
112a9a06385
1215a879389
13a2aa6b80
146121a213
153b44b183
hex263735d9

641152473 has 16 divisors (see below), whose sum is σ = 969084480. Its totient is φ = 373788864.

The previous prime is 641152459. The next prime is 641152483. The reversal of 641152473 is 374251146.

It is not a de Polignac number, because 641152473 - 25 = 641152441 is a prime.

It is a super-2 number, since 2×6411524732 = 822152987268031458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641152423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431886 + ... + 433367.

It is an arithmetic number, because the mean of its divisors is an integer number (60567780).

Almost surely, 2641152473 is an apocalyptic number.

It is an amenable number.

641152473 is a deficient number, since it is larger than the sum of its proper divisors (327932007).

641152473 is a wasteful number, since it uses less digits than its factorization.

641152473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865288.

The product of its digits is 20160, while the sum is 33.

The square root of 641152473 is about 25320.9887840108. The cubic root of 641152473 is about 862.2908424568.

The spelling of 641152473 in words is "six hundred forty-one million, one hundred fifty-two thousand, four hundred seventy-three".

Divisors: 1 3 13 19 39 57 247 741 865253 2595759 11248289 16439807 33744867 49319421 213717491 641152473