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487268172 = 223271379503
BaseRepresentation
bin11101000010110…
…001111101001100
31020221212210021100
4131002301331030
51444220040142
6120203503100
715034465626
oct3502617514
91227783240
10487268172
11230060876
12117227a90
1379c47c81
14489ddc16
152cba0b4c
hex1d0b1f4c

487268172 has 72 divisors (see below), whose sum is σ = 1254839040. Its totient is φ = 159395040.

The previous prime is 487268123. The next prime is 487268189. The reversal of 487268172 is 271862784.

487268172 is a `hidden beast` number, since 487 + 26 + 81 + 72 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 968473 + ... + 968975.

It is an arithmetic number, because the mean of its divisors is an integer number (17428320).

Almost surely, 2487268172 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 487268172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (627419520).

487268172 is an abundant number, since it is smaller than the sum of its proper divisors (767570868).

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

487268172 is a wasteful number, since it uses less digits than its factorization.

487268172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963 (or 958 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 487268172 is about 22074.1516711288. The cubic root of 487268172 is about 786.9056825026.

The spelling of 487268172 in words is "four hundred eighty-seven million, two hundred sixty-eight thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 36 71 142 213 284 379 426 503 639 758 852 1006 1137 1278 1509 1516 2012 2274 2556 3018 3411 4527 4548 6036 6822 9054 13644 18108 26909 35713 53818 71426 80727 107139 107636 142852 161454 190637 214278 242181 321417 322908 381274 428556 484362 571911 642834 762548 968724 1143822 1285668 1715733 2287644 3431466 6862932 13535227 27070454 40605681 54140908 81211362 121817043 162422724 243634086 487268172