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872558412 = 2231117936929
BaseRepresentation
bin110100000000100…
…010111101001100
32020210212120010020
4310000202331030
53241333332122
6222325542140
730423424035
oct6400427514
92223776106
10872558412
1140859a060
12204274950
1310ba0906b
1483c55a8c
155190ac5c
hex34022f4c

872558412 has 48 divisors (see below), whose sum is σ = 2233526400. Its totient is φ = 262927360.

The previous prime is 872558411. The next prime is 872558417. The reversal of 872558412 is 214855278.

It is a super-2 number, since 2×8725584122 = 1522716364703923488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (872558411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5164 + ... + 42092.

It is an arithmetic number, because the mean of its divisors is an integer number (46531800).

Almost surely, 2872558412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 872558412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1116763200).

872558412 is an abundant number, since it is smaller than the sum of its proper divisors (1360967988).

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

872558412 is a wasteful number, since it uses less digits than its factorization.

872558412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37126 (or 37124 counting only the distinct ones).

The product of its digits is 179200, while the sum is 42.

The square root of 872558412 is about 29539.0997154619. The cubic root of 872558412 is about 955.5751264685.

The spelling of 872558412 in words is "eight hundred seventy-two million, five hundred fifty-eight thousand, four hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 179 358 537 716 1074 1969 2148 3938 5907 7876 11814 23628 36929 73858 110787 147716 221574 406219 443148 812438 1218657 1624876 2437314 4874628 6610291 13220582 19830873 26441164 39661746 72713201 79323492 145426402 218139603 290852804 436279206 872558412