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72056046581372 = 2275943617461611
BaseRepresentation
bin10000011000100011011011…
…000011110111011001111100
3100110010111020202222221200202
4100120203123003313121330
533421031240411100442
6413130031341143032
721114610002151010
oct2030433303673174
9313114222887622
1072056046581372
1120a60885886047
1280b8b4025aa78
133128b18935b99
1413b1761adc540
1584e523102c32
hex4188db0f767c

72056046581372 has 24 divisors (see below), whose sum is σ = 146554671016320. Its totient is φ = 30357753280560.

The previous prime is 72056046581357. The next prime is 72056046581399. The reversal of 72056046581372 is 27318564065027.

It is a congruent number.

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, 21808729154 + ... + 21808732457.

It is an arithmetic number, because the mean of its divisors is an integer number (6106444625680).

Almost surely, 272056046581372 is an apocalyptic number.

It is an amenable number.

72056046581372 is an abundant number, since it is smaller than the sum of its proper divisors (74498624434948).

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

72056046581372 is a wasteful number, since it uses less digits than its factorization.

72056046581372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43617461681 (or 43617461679 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 56.

The spelling of 72056046581372 in words is "seventy-two trillion, fifty-six billion, forty-six million, five hundred eighty-one thousand, three hundred seventy-two".

Divisors: 1 2 4 7 14 28 59 118 236 413 826 1652 43617461611 87234923222 174469846444 305322231277 610644462554 1221288925108 2573430235049 5146860470098 10293720940196 18014011645343 36028023290686 72056046581372