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641100231245 = 51312218944111
BaseRepresentation
bin10010101010001001000…
…11010011001001001101
32021021210101012010112002
421111010203103021031
541000433124344440
61210303430522045
764214030024045
oct11250443231115
92237711163462
10641100231245
11227986404661
12a42bb206325
13485bc941a76
142305aa10725
1511a23234115
hex95448d324d

641100231245 has 16 divisors (see below), whose sum is σ = 775245461760. Its totient is φ = 508930593600.

The previous prime is 641100231223. The next prime is 641100231271. The reversal of 641100231245 is 542132001146.

It is not a de Polignac number, because 641100231245 - 28 = 641100230989 is a prime.

It is a super-2 number, since 2×6411002312452 (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, 14511740 + ... + 14555850.

It is an arithmetic number, because the mean of its divisors is an integer number (48452841360).

Almost surely, 2641100231245 is an apocalyptic number.

It is an amenable number.

641100231245 is a deficient number, since it is larger than the sum of its proper divisors (134145230515).

641100231245 is a wasteful number, since it uses less digits than its factorization.

641100231245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66436.

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 641100231245 in words is "six hundred forty-one billion, one hundred million, two hundred thirty-one thousand, two hundred forty-five".

Divisors: 1 5 131 655 22189 44111 110945 220555 2906759 5778541 14533795 28892705 978778979 4893894895 128220046249 641100231245