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72402854680 = 23513295747087
BaseRepresentation
bin100001101101110001…
…0111110001100011000
320220212212202002211101
41003123202332030120
52141240112322210
653132244241144
75142132052612
oct1033342761430
9226785662741
1072402854680
1128784584392
12120476a01b4
136a9b1c2760
14370bbb9db2
151d3b54ca3a
hex10db8be318

72402854680 has 64 divisors (see below), whose sum is σ = 175500743040. Its totient is φ = 26723753472.

The previous prime is 72402854677. The next prime is 72402854723. The reversal of 72402854680 is 8645820427.

It is a self number, because there is not a number n which added to its sum of digits gives 72402854680.

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, 1514097 + ... + 1561183.

It is an arithmetic number, because the mean of its divisors is an integer number (2742199110).

Almost surely, 272402854680 is an apocalyptic number.

It is an amenable number.

72402854680 is an abundant number, since it is smaller than the sum of its proper divisors (103097888360).

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

72402854680 is a wasteful number, since it uses less digits than its factorization.

72402854680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50068 (or 50064 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 46.

The spelling of 72402854680 in words is "seventy-two billion, four hundred two million, eight hundred fifty-four thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 2957 5914 11828 14785 23656 29570 38441 47087 59140 76882 94174 118280 153764 188348 192205 235435 307528 376696 384410 470870 612131 768820 941740 1224262 1537640 1883480 2448524 3060655 4897048 6121310 12242620 24485240 139236259 278472518 556945036 696181295 1113890072 1392362590 1810071367 2784725180 3620142734 5569450360 7240285468 9050356835 14480570936 18100713670 36201427340 72402854680