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72040836010 = 25112134579837
BaseRepresentation
bin100001100010111110…
…1111110101110101010
320212221122112122120111
41003011331332232222
52140014423223020
653032313044534
75130145000603
oct1030575765652
9225848478514
1072040836010
11286091a0400
1211b663b674a
136a411bbc20
1436b5aa0daa
151d1988cd5a
hex10c5f7ebaa

72040836010 has 48 divisors (see below), whose sum is σ = 153497850408. Its totient is φ = 24181534080.

The previous prime is 72040835983. The next prime is 72040836037. The reversal of 72040836010 is 1063804027.

It is an interprime number because it is at equal distance from previous prime (72040835983) and next prime (72040836037).

It can be written as a sum of positive squares in 4 ways, for example, as 31399485601 + 40641350409 = 177199^2 + 201597^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2274189 + ... + 2305648.

Almost surely, 272040836010 is an apocalyptic number.

72040836010 is an abundant number, since it is smaller than the sum of its proper divisors (81457014398).

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

72040836010 is a wasteful number, since it uses less digits than its factorization.

72040836010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4579879 (or 4579868 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The spelling of 72040836010 in words is "seventy-two billion, forty million, eight hundred thirty-six thousand, ten".

Divisors: 1 2 5 10 11 13 22 26 55 65 110 121 130 143 242 286 605 715 1210 1430 1573 3146 7865 15730 4579837 9159674 22899185 45798370 50378207 59537881 100756414 119075762 251891035 297689405 503782070 554160277 595378810 654916691 1108320554 1309833382 2770801385 3274583455 5541602770 6549166910 7204083601 14408167202 36020418005 72040836010