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8472042 = 232470669
BaseRepresentation
bin100000010100…
…010111101010
3120221102110100
4200110113222
54132101132
6501330230
7132003555
oct40242752
916842410
108472042
114867197
122a06976
1319a8257
1411a769c
15b2537c
hex8145ea

8472042 has 12 divisors (see below), whose sum is σ = 18356130. Its totient is φ = 2824008.

The previous prime is 8472017. The next prime is 8472047. The reversal of 8472042 is 2402748.

It can be written as a sum of positive squares in only one way, i.e., 4704561 + 3767481 = 2169^2 + 1941^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8471997 and 8472015.

It is not an unprimeable number, because it can be changed into a prime (8472047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 235317 + ... + 235352.

Almost surely, 28472042 is an apocalyptic number.

8472042 is an abundant number, since it is smaller than the sum of its proper divisors (9884088).

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

8472042 is a wasteful number, since it uses less digits than its factorization.

8472042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470677 (or 470674 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 8472042 is about 2910.6772407809. The cubic root of 8472042 is about 203.8587545916.

The spelling of 8472042 in words is "eight million, four hundred seventy-two thousand, forty-two".

Divisors: 1 2 3 6 9 18 470669 941338 1412007 2824014 4236021 8472042