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30752668 = 2210317457
BaseRepresentation
bin111010101001…
…1111110011100
32010212101201201
41311103332130
530333041133
63015045244
7522251632
oct165237634
963771651
1030752668
11163a4a31
12a370824
1364a975b
144127352
152a76d7d
hex1d53f9c

30752668 has 12 divisors (see below), whose sum is σ = 53876592. Its totient is φ = 15359360.

The previous prime is 30752663. The next prime is 30752671. The reversal of 30752668 is 86625703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30752663) 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, 396 + ... + 7852.

It is an arithmetic number, because the mean of its divisors is an integer number (4489716).

Almost surely, 230752668 is an apocalyptic number.

It is an amenable number.

30752668 is a deficient number, since it is larger than the sum of its proper divisors (23123924).

30752668 is a wasteful number, since it uses less digits than its factorization.

30752668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8492 (or 8490 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 30752668 is about 5545.5088134453. The cubic root of 30752668 is about 313.3003883676.

It can be divided in two parts, 307 and 52668, that added together give a triangular number (52975 = T325).

The spelling of 30752668 in words is "thirty million, seven hundred fifty-two thousand, six hundred sixty-eight".

Divisors: 1 2 4 1031 2062 4124 7457 14914 29828 7688167 15376334 30752668