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51120674503760 = 2452940275471759
BaseRepresentation
bin10111001111110011101011…
…01001001111110001010000
320201000002101200221122100002
423213321311221033301100
523200030120133110020
6300420302541145132
713524226653503621
oct1347716551176120
9221002350848302
1051120674503760
111531a17a053824
12589764255b1a8
13226a874859214
14c8a37a7b5a48
155d9b756b4975
hex2e7e75a4fc50

51120674503760 has 80 divisors (see below), whose sum is σ = 122984590982400. Its totient is φ = 19738250746368.

The previous prime is 51120674503711. The next prime is 51120674503831. The reversal of 51120674503760 is 6730547602115.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×511206745037602 (a number of 28 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 15 ways as a sum of consecutive naturals, for example, 6606761 + ... + 12078519.

It is an arithmetic number, because the mean of its divisors is an integer number (1537307387280).

Almost surely, 251120674503760 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 51120674503760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61492295491200).

51120674503760 is an abundant number, since it is smaller than the sum of its proper divisors (71863916478640).

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

51120674503760 is a wasteful number, since it uses less digits than its factorization.

51120674503760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5475828 (or 5475822 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 51120674503760 in words is "fifty-one trillion, one hundred twenty billion, six hundred seventy-four million, five hundred three thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 29 40 58 80 116 145 232 290 464 580 1160 2320 4027 8054 16108 20135 32216 40270 64432 80540 116783 161080 233566 322160 467132 583915 934264 1167830 1868528 2335660 4671320 5471759 9342640 10943518 21887036 27358795 43774072 54717590 87548144 109435180 158681011 218870360 317362022 437740720 634724044 793405055 1269448088 1586810110 2538896176 3173620220 6347240440 12694480880 22034773493 44069546986 88139093972 110173867465 176278187944 220347734930 352556375888 440695469860 639008431297 881390939720 1278016862594 1762781879440 2556033725188 3195042156485 5112067450376 6390084312970 10224134900752 12780168625940 25560337251880 51120674503760