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172008020796 = 223190720993581
BaseRepresentation
bin1010000000110001111…
…0100001101100111100
3121102222112102210210220
42200030132201230330
510304233023131141
6211004104501340
715266343024123
oct2401436415474
9542875383726
10172008020796
1166a48052997
122940517a850
13132b2c7c181
14847a61caba
15471ac94766
hex280c7a1b3c

172008020796 has 48 divisors (see below), whose sum is σ = 401866012800. Its totient is φ = 57262644160.

The previous prime is 172008020791. The next prime is 172008020809. The reversal of 172008020796 is 697020800271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172008020791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48031726 + ... + 48035306.

It is an arithmetic number, because the mean of its divisors is an integer number (8372208600).

Almost surely, 2172008020796 is an apocalyptic number.

It is an amenable number.

172008020796 is an abundant number, since it is smaller than the sum of its proper divisors (229857992004).

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

172008020796 is a wasteful number, since it uses less digits than its factorization.

172008020796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7594 (or 7592 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The spelling of 172008020796 in words is "one hundred seventy-two billion, eight million, twenty thousand, seven hundred ninety-six".

Divisors: 1 2 3 4 6 12 1907 2099 3581 3814 4198 5721 6297 7162 7628 8396 10743 11442 12594 14324 21486 22884 25188 42972 4002793 6828967 7516519 8005586 12008379 13657934 15033038 16011172 20486901 22549557 24016758 27315868 30066076 40973802 45099114 48033516 81947604 90198228 14334001733 28668003466 43002005199 57336006932 86004010398 172008020796