Search a number
-
+
172369472 = 2611244843
BaseRepresentation
bin10100100011000…
…10011001000000
3110000100021110112
422101202121000
5323111310342
625034250452
74162054622
oct1221423100
9400307415
10172369472
1189330810
1249886a28
1329931992
1418c6cc12
15101ec682
hexa462640

172369472 has 28 divisors (see below), whose sum is σ = 373142256. Its totient is φ = 78349440.

The previous prime is 172369471. The next prime is 172369489. The reversal of 172369472 is 274963271.

It is a super-2 number, since 2×1723694722 = 59422469755117568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (172369471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121718 + ... + 123125.

Almost surely, 2172369472 is an apocalyptic number.

It is an amenable number.

172369472 is an abundant number, since it is smaller than the sum of its proper divisors (200772784).

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

172369472 is a wasteful number, since it uses less digits than its factorization.

172369472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244866 (or 244856 counting only the distinct ones).

The product of its digits is 127008, while the sum is 41.

The square root of 172369472 is about 13128.9554801591. The cubic root of 172369472 is about 556.5276980284.

The spelling of 172369472 in words is "one hundred seventy-two million, three hundred sixty-nine thousand, four hundred seventy-two".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 176 352 704 244843 489686 979372 1958744 2693273 3917488 5386546 7834976 10773092 15669952 21546184 43092368 86184736 172369472