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30099970 = 2529271383
BaseRepresentation
bin111001011010…
…0101000000010
32002122020101201
41302310220002
530201144340
62553051414
7513563005
oct162645002
962566351
1030099970
1115a9960a
12a0b6b6a
13630b644
143dd753c
15299879a
hex1cb4a02

30099970 has 32 divisors (see below), whose sum is σ = 56401920. Its totient is φ = 11551680.

The previous prime is 30099967. The next prime is 30099983. The reversal of 30099970 is 7999003.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78399 + ... + 78781.

It is an arithmetic number, because the mean of its divisors is an integer number (1762560).

Almost surely, 230099970 is an apocalyptic number.

30099970 is a deficient number, since it is larger than the sum of its proper divisors (26301950).

30099970 is a wasteful number, since it uses less digits than its factorization.

30099970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690.

The product of its (nonzero) digits is 15309, while the sum is 37.

The square root of 30099970 is about 5486.3439556776. The cubic root of 30099970 is about 311.0680124065.

The spelling of 30099970 in words is "thirty million, ninety-nine thousand, nine hundred seventy".

Divisors: 1 2 5 10 29 58 145 271 290 383 542 766 1355 1915 2710 3830 7859 11107 15718 22214 39295 55535 78590 103793 111070 207586 518965 1037930 3009997 6019994 15049985 30099970