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538450956 = 223319534951
BaseRepresentation
bin100000000110000…
…001110000001100
31101112012010212000
4200012001300030
52100320412311
6125232512300
716225520601
oct4006016014
91345163760
10538450956
11256a3a19a
121303ab690
1387728844
14517246a8
1532411056
hex20181c0c

538450956 has 96 divisors (see below), whose sum is σ = 1497484800. Its totient is φ = 166795200.

The previous prime is 538450951. The next prime is 538450961. The reversal of 538450956 is 659054835.

It is an interprime number because it is at equal distance from previous prime (538450951) and next prime (538450961).

It is not an unprimeable number, because it can be changed into a prime (538450951) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106281 + ... + 111231.

It is an arithmetic number, because the mean of its divisors is an integer number (15598800).

Almost surely, 2538450956 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 538450956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (748742400).

538450956 is an abundant number, since it is smaller than the sum of its proper divisors (959033844).

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

538450956 is a wasteful number, since it uses less digits than its factorization.

538450956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5036 (or 5028 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The square root of 538450956 is about 23204.5460201229. The cubic root of 538450956 is about 813.5458813995.

The spelling of 538450956 in words is "five hundred thirty-eight million, four hundred fifty thousand, nine hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 19 27 36 38 53 54 57 76 106 108 114 159 171 212 228 318 342 477 513 636 684 954 1007 1026 1431 1908 2014 2052 2862 3021 4028 4951 5724 6042 9063 9902 12084 14853 18126 19804 27189 29706 36252 44559 54378 59412 89118 94069 108756 133677 178236 188138 262403 267354 282207 376276 524806 534708 564414 787209 846621 1049612 1128828 1574418 1693242 2361627 2539863 3148836 3386484 4723254 4985657 5079726 7084881 9446508 9971314 10159452 14169762 14956971 19942628 28339524 29913942 44870913 59827884 89741826 134612739 179483652 269225478 538450956