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872830358838 = 232147779328129
BaseRepresentation
bin11001011001110001011…
…11100101010100110110
310002102221001022022021100
430230320233211110312
5103300024032440323
61504550035430530
7120026356431504
oct14547057452466
93072831268240
10872830358838
1130718aa8a2a9
121211b1155446
13643cc8c0669
1430360c25674
1517a87137943
hexcb38be5536

872830358838 has 24 divisors (see below), whose sum is σ = 1891151004600. Its totient is φ = 290940597504.

The previous prime is 872830358833. The next prime is 872830358843. The reversal of 872830358838 is 838853038278.

It is an interprime number because it is at equal distance from previous prime (872830358833) and next prime (872830358843).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872830358831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2495958 + ... + 2824086.

It is an arithmetic number, because the mean of its divisors is an integer number (78797958525).

Almost surely, 2872830358838 is an apocalyptic number.

872830358838 is an abundant number, since it is smaller than the sum of its proper divisors (1018320645762).

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

872830358838 is a wasteful number, since it uses less digits than its factorization.

872830358838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475916 (or 475913 counting only the distinct ones).

The product of its (nonzero) digits is 61931520, while the sum is 63.

The spelling of 872830358838 in words is "eight hundred seventy-two billion, eight hundred thirty million, three hundred fifty-eight thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 9 18 147779 295558 328129 443337 656258 886674 984387 1330011 1968774 2660022 2953161 5906322 48490575491 96981150982 145471726473 290943452946 436415179419 872830358838