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53064970880 = 275503164839
BaseRepresentation
bin110001011010111010…
…110011001010000000
312001222012002211020212
4301122322303022000
51332134113032010
640213330253252
73555666544625
oct613272631200
9161865084225
1053064970880
112056087a039
12a34b427228
135008a5196c
1427d580a34c
1515a89be505
hexc5aeb3280

53064970880 has 64 divisors (see below), whose sum is σ = 127111420800. Its totient is φ = 21183661056.

The previous prime is 53064970879. The next prime is 53064970901. The reversal of 53064970880 is 8807946035.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×530649708802 (a number of 22 digits) contains 22 as substring.

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, 239501 + ... + 404339.

It is an arithmetic number, because the mean of its divisors is an integer number (1986115950).

Almost surely, 253064970880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53064970880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63555710400).

53064970880 is an abundant number, since it is smaller than the sum of its proper divisors (74046449920).

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

53064970880 is a wasteful number, since it uses less digits than its factorization.

53064970880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165361 (or 165349 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 53064970880 in words is "fifty-three billion, sixty-four million, nine hundred seventy thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 503 640 1006 2012 2515 4024 5030 8048 10060 16096 20120 32192 40240 64384 80480 160960 164839 321920 329678 659356 824195 1318712 1648390 2637424 3296780 5274848 6593560 10549696 13187120 21099392 26374240 52748480 82914017 105496960 165828034 331656068 414570085 663312136 829140170 1326624272 1658280340 2653248544 3316560680 5306497088 6633121360 10612994176 13266242720 26532485440 53064970880