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61682472 = 233495189
BaseRepresentation
bin1110101101001…
…1001100101000
311022001210110000
43223103030220
5111242314342
610042023000
71346202165
oct353231450
9138053400
1061682472
11318aaa55
12187a7a60
13ca18a07
14829906c
15563644c
hex3ad3328

61682472 has 40 divisors (see below), whose sum is σ = 172769850. Its totient is φ = 20560608.

The previous prime is 61682437. The next prime is 61682521. The reversal of 61682472 is 27428616.

61682472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 57972996 + 3709476 = 7614^2 + 1926^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 46947 + ... + 48242.

Almost surely, 261682472 is an apocalyptic number.

It is an amenable number.

61682472 is an abundant number, since it is smaller than the sum of its proper divisors (111087378).

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

61682472 is a wasteful number, since it uses less digits than its factorization.

61682472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95207 (or 95194 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 61682472 is about 7853.8189436732. The cubic root of 61682472 is about 395.1123367931.

The spelling of 61682472 in words is "sixty-one million, six hundred eighty-two thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 324 648 95189 190378 285567 380756 571134 761512 856701 1142268 1713402 2284536 2570103 3426804 5140206 6853608 7710309 10280412 15420618 20560824 30841236 61682472