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641352124 = 227193118681
BaseRepresentation
bin100110001110100…
…100000110111100
31122200211001201101
4212032210012330
52303141231444
6143350222444
721615255160
oct4616440674
91580731641
10641352124
112aa032386
1215a954a24
13a2b469ca
146126cca0
153b48a3d4
hex263a41bc

641352124 has 24 divisors (see below), whose sum is σ = 1289361248. Its totient is φ = 273438720.

The previous prime is 641352097. The next prime is 641352133. The reversal of 641352124 is 421253146.

It is a super-2 number, since 2×6413521242 = 822665093918622752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 641352092 and 641352101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53937 + ... + 64744.

Almost surely, 2641352124 is an apocalyptic number.

It is an amenable number.

641352124 is an abundant number, since it is smaller than the sum of its proper divisors (648009124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

641352124 is a wasteful number, since it uses less digits than its factorization.

641352124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118885 (or 118883 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 641352124 is about 25324.9308784842. The cubic root of 641352124 is about 862.3803372180.

The spelling of 641352124 in words is "six hundred forty-one million, three hundred fifty-two thousand, one hundred twenty-four".

Divisors: 1 2 4 7 14 28 193 386 772 1351 2702 5404 118681 237362 474724 830767 1661534 3323068 22905433 45810866 91621732 160338031 320676062 641352124