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30697404 = 22310692393
BaseRepresentation
bin111010100011…
…0011110111100
32010202120220220
41311012132330
530324304104
63013541340
7521631543
oct165063674
963676826
1030697404
1116367461
12a344850
13648a55a
14411115a
152a657d9
hex1d467bc

30697404 has 24 divisors (see below), whose sum is σ = 71724240. Its totient is φ = 10218624.

The previous prime is 30697379. The next prime is 30697421. The reversal of 30697404 is 40479603.

It is a super-2 number, since 2×306974042 = 1884661224678432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11632 + ... + 14024.

It is an arithmetic number, because the mean of its divisors is an integer number (2988510).

Almost surely, 230697404 is an apocalyptic number.

It is an amenable number.

30697404 is an abundant number, since it is smaller than the sum of its proper divisors (41026836).

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

30697404 is a wasteful number, since it uses less digits than its factorization.

30697404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3469 (or 3467 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 30697404 is about 5540.5238019523. The cubic root of 30697404 is about 313.1126039610.

The spelling of 30697404 in words is "thirty million, six hundred ninety-seven thousand, four hundred four".

Divisors: 1 2 3 4 6 12 1069 2138 2393 3207 4276 4786 6414 7179 9572 12828 14358 28716 2558117 5116234 7674351 10232468 15348702 30697404