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393430074 = 23192181639
BaseRepresentation
bin10111011100110…
…100010000111010
31000102022022121020
4113130310100322
51301204230244
6103012323310
712515046312
oct2734642072
91012268536
10393430074
11192098924
12ab913536
136368107b
143a374442
1524816d19
hex1773443a

393430074 has 24 divisors (see below), whose sum is σ = 830458080. Its totient is φ = 124240392.

The previous prime is 393430061. The next prime is 393430087. The reversal of 393430074 is 470034393.

It is an interprime number because it is at equal distance from previous prime (393430061) and next prime (393430087).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88654 + ... + 92985.

It is an arithmetic number, because the mean of its divisors is an integer number (34602420).

Almost surely, 2393430074 is an apocalyptic number.

393430074 is an abundant number, since it is smaller than the sum of its proper divisors (437028006).

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

393430074 is a wasteful number, since it uses less digits than its factorization.

393430074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181682 (or 181663 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 33.

The square root of 393430074 is about 19835.0718173643. The cubic root of 393430074 is about 732.7500411780.

The spelling of 393430074 in words is "three hundred ninety-three million, four hundred thirty thousand, seventy-four".

Divisors: 1 2 3 6 19 38 57 114 361 722 1083 2166 181639 363278 544917 1089834 3451141 6902282 10353423 20706846 65571679 131143358 196715037 393430074