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641125626430 = 251131543936749
BaseRepresentation
bin10010101010001100001…
…00001011001000111110
32021021212010222100011111
421111012010023020332
541001011130021210
61210310135112234
764214455623352
oct11250604131076
92237763870144
10641125626430
1122799977a413
12a430781267a
13485c4c93ac3
1423060141462
1511a2559d88a
hex954610b23e

641125626430 has 32 divisors (see below), whose sum is σ = 1164345840000. Its totient is φ = 254157399552.

The previous prime is 641125626391. The next prime is 641125626527. The reversal of 641125626430 is 34626521146.

It is a super-2 number, since 2×6411256264302 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 17427696 + ... + 17464444.

It is an arithmetic number, because the mean of its divisors is an integer number (36385807500).

Almost surely, 2641125626430 is an apocalyptic number.

641125626430 is a deficient number, since it is larger than the sum of its proper divisors (523220213570).

641125626430 is a wasteful number, since it uses less digits than its factorization.

641125626430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52308.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 641125626430 in words is "six hundred forty-one billion, one hundred twenty-five million, six hundred twenty-six thousand, four hundred thirty".

Divisors: 1 2 5 10 113 226 565 1130 15439 30878 36749 73498 77195 154390 183745 367490 1744607 3489214 4152637 8305274 8723035 17446070 20763185 41526370 567367811 1134735622 2836839055 5673678110 64112562643 128225125286 320562813215 641125626430