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641368702712 = 23182099440261
BaseRepresentation
bin10010101010101001000…
…11011011111011111000
32021022111002100220010202
421111110203123323320
541002010341441322
61210350221101332
764223500010513
oct11252443337370
92238432326122
10641368702712
11228003a04201
12a43750b7848
1348633450c1a
1423084537d7a
1511a3bab6292
hex95548dbef8

641368702712 has 16 divisors (see below), whose sum is σ = 1202575653000. Its totient is φ = 320681861920.

The previous prime is 641368702703. The next prime is 641368702763. The reversal of 641368702712 is 217207863146.

It is a super-2 number, since 2×6413687027122 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1236662 + ... + 1676922.

Almost surely, 2641368702712 is an apocalyptic number.

It is an amenable number.

641368702712 is a deficient number, since it is larger than the sum of its proper divisors (561206950288).

641368702712 is a wasteful number, since it uses less digits than its factorization.

641368702712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622366 (or 622362 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 641368702712 in words is "six hundred forty-one billion, three hundred sixty-eight million, seven hundred two thousand, seven hundred twelve".

Divisors: 1 2 4 8 182099 364198 440261 728396 880522 1456792 1761044 3522088 80171087839 160342175678 320684351356 641368702712