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30427692 = 2232535641
BaseRepresentation
bin111010000010…
…0101000101100
32010020212221120
41310010220230
530242141232
63004100540
7516426321
oct164045054
963225846
1030427692
11161a2859
12a234750
1363c4869
144080b48
152a1092c
hex1d04a2c

30427692 has 12 divisors (see below), whose sum is σ = 70997976. Its totient is φ = 10142560.

The previous prime is 30427687. The next prime is 30427711. The reversal of 30427692 is 29672403.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1267809 + ... + 1267832.

It is an arithmetic number, because the mean of its divisors is an integer number (5916498).

Almost surely, 230427692 is an apocalyptic number.

It is an amenable number.

30427692 is an abundant number, since it is smaller than the sum of its proper divisors (40570284).

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

30427692 is a wasteful number, since it uses less digits than its factorization.

30427692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2535648 (or 2535646 counting only the distinct ones).

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

The square root of 30427692 is about 5516.1301652517. The cubic root of 30427692 is about 312.1928869733.

The spelling of 30427692 in words is "thirty million, four hundred twenty-seven thousand, six hundred ninety-two".

Divisors: 1 2 3 4 6 12 2535641 5071282 7606923 10142564 15213846 30427692