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3688287072 = 25343388729
BaseRepresentation
bin1101101111010110…
…1100101101100000
3100112001011101200220
43123311230231200
530023200141242
61405552443040
7160253631351
oct33365545540
910461141626
103688287072
111622a3a738
1286b249480
1346a1824b2
1426dbb1d28
15168c00bec
hexdbd6cb60

3688287072 has 48 divisors (see below), whose sum is σ = 9704222640. Its totient is φ = 1226575872.

The previous prime is 3688287047. The next prime is 3688287073. The reversal of 3688287072 is 2707828863.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3688287073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2797 + ... + 85932.

It is an arithmetic number, because the mean of its divisors is an integer number (202171305).

Almost surely, 23688287072 is an apocalyptic number.

3688287072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3688287072 is an abundant number, since it is smaller than the sum of its proper divisors (6015935568).

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

3688287072 is a wasteful number, since it uses less digits than its factorization.

3688287072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89175 (or 89167 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The square root of 3688287072 is about 60731.2693099691. The cubic root of 3688287072 is about 1545.0465624157.

The spelling of 3688287072 in words is "three billion, six hundred eighty-eight million, two hundred eighty-seven thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 433 866 1299 1732 2598 3464 5196 6928 10392 13856 20784 41568 88729 177458 266187 354916 532374 709832 1064748 1419664 2129496 2839328 4258992 8517984 38419657 76839314 115258971 153678628 230517942 307357256 461035884 614714512 922071768 1229429024 1844143536 3688287072