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133857314680 = 2353610792681
BaseRepresentation
bin111110010101010000…
…1001000011101111000
3110210111202011010121111
41330222201020131320
54143114433032210
6141254310450104
712446052254515
oct1745241103570
9423452133544
10133857314680
115184aa67801
1221b38663934
13c81308885b
14669b8ba30c
15373680188a
hex1f2a848778

133857314680 has 32 divisors (see below), whose sum is σ = 301190549040. Its totient is φ = 53540865280.

The previous prime is 133857314671. The next prime is 133857314699. The reversal of 133857314680 is 86413758331.

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, 1397940 + ... + 1490620.

Almost surely, 2133857314680 is an apocalyptic number.

133857314680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133857314680 is an abundant number, since it is smaller than the sum of its proper divisors (167333234360).

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

133857314680 is a wasteful number, since it uses less digits than its factorization.

133857314680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128799 (or 128795 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 133857314680 in words is "one hundred thirty-three billion, eight hundred fifty-seven million, three hundred fourteen thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 36107 72214 92681 144428 180535 185362 288856 361070 370724 463405 722140 741448 926810 1444280 1853620 3707240 3346432867 6692865734 13385731468 16732164335 26771462936 33464328670 66928657340 133857314680