Search a number
-
+
471887442 = 232137128403
BaseRepresentation
bin11100001000000…
…110111001010010
31012212221100212200
4130020012321102
51431300344232
6114454104030
714456656065
oct3410067122
91185840780
10471887442
11222406024
1211204b016
13769c1250
14469588dc
152b66377c
hex1c206e52

471887442 has 48 divisors (see below), whose sum is σ = 1116618048. Its totient is φ = 143146080.

The previous prime is 471887417. The next prime is 471887483. The reversal of 471887442 is 244788174.

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, 2413 + ... + 30815.

It is an arithmetic number, because the mean of its divisors is an integer number (23262876).

Almost surely, 2471887442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 471887442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (558309024).

471887442 is an abundant number, since it is smaller than the sum of its proper divisors (644730606).

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

471887442 is a wasteful number, since it uses less digits than its factorization.

471887442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28495 (or 28492 counting only the distinct ones).

The product of its digits is 401408, while the sum is 45.

The square root of 471887442 is about 21722.9703769996. The cubic root of 471887442 is about 778.5373873093.

The spelling of 471887442 in words is "four hundred seventy-one million, eight hundred eighty-seven thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 13 18 26 39 71 78 117 142 213 234 426 639 923 1278 1846 2769 5538 8307 16614 28403 56806 85209 170418 255627 369239 511254 738478 1107717 2016613 2215434 3323151 4033226 6049839 6646302 12099678 18149517 26215969 36299034 52431938 78647907 157295814 235943721 471887442