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99999930 = 2353333331
BaseRepresentation
bin1011111010111…
…10000010111010
320222011112010010
411331132002322
5201044444210
613531202350
72322661662
oct575360272
9228145103
1099999930
11514a1478
12295a63b6
1317943774
14d3d11a2
158ba4920
hex5f5e0ba

99999930 has 16 divisors (see below), whose sum is σ = 239999904. Its totient is φ = 26666640.

The previous prime is 99999847. The next prime is 99999931. The reversal of 99999930 is 3999999.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (99999931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1666636 + ... + 1666695.

It is an arithmetic number, because the mean of its divisors is an integer number (14999994).

Almost surely, 299999930 is an apocalyptic number.

99999930 is an abundant number, since it is smaller than the sum of its proper divisors (139999974).

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

99999930 is a wasteful number, since it uses less digits than its factorization.

99999930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333341.

The product of its (nonzero) digits is 1594323, while the sum is 57.

The square root of 99999930 is about 9999.9964999994. The cubic root of 99999930 is about 464.1587750575.

The spelling of 99999930 in words is "ninety-nine million, nine hundred ninety-nine thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 3333331 6666662 9999993 16666655 19999986 33333310 49999965 99999930