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53690687232 = 2837132959449
BaseRepresentation
bin110010000000001101…
…101101111100000000
312010120210111111201120
4302000031231330000
51334424303442412
640355401432240
73610335211560
oct620015557400
9163523444646
1053690687232
1120851aa1a96
12a4a4a9b680
1350a8582820
142854968da0
1515e38bbb8c
hexc8036df00

53690687232 has 576 divisors, whose sum is σ = 185431680000. Its totient is φ = 13410238464.

The previous prime is 53690687221. The next prime is 53690687249. The reversal of 53690687232 is 23278609635.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 119578144 + ... + 119578592.

It is an arithmetic number, because the mean of its divisors is an integer number (321930000).

Almost surely, 253690687232 is an apocalyptic number.

53690687232 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53690687232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92715840000).

53690687232 is an abundant number, since it is smaller than the sum of its proper divisors (131740992768).

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

53690687232 is a wasteful number, since it uses less digits than its factorization.

53690687232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 51.

The spelling of 53690687232 in words is "fifty-three billion, six hundred ninety million, six hundred eighty-seven thousand, two hundred thirty-two".