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30898984 = 233862373
BaseRepresentation
bin111010111011…
…1101100101000
32011010211102211
41311313230220
530402231414
63022134504
7523431334
oct165675450
964124384
1030898984
1116494956
12a421434
13652b22c
1441647c4
152aa53c4
hex1d77b28

30898984 has 8 divisors (see below), whose sum is σ = 57935610. Its totient is φ = 15449488.

The previous prime is 30898961. The next prime is 30899003. The reversal of 30898984 is 48989803.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 28408900 + 2490084 = 5330^2 + 1578^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1931179 + ... + 1931194.

Almost surely, 230898984 is an apocalyptic number.

It is an amenable number.

30898984 is a deficient number, since it is larger than the sum of its proper divisors (27036626).

30898984 is a wasteful number, since it uses less digits than its factorization.

30898984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3862379 (or 3862375 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 49.

The square root of 30898984 is about 5558.6854561128. The cubic root of 30898984 is about 313.7964792017.

The spelling of 30898984 in words is "thirty million, eight hundred ninety-eight thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 3862373 7724746 15449492 30898984