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99997140 = 22351666619
BaseRepresentation
bin1011111010111…
…01010111010100
320222011101021210
411331131113110
5201044402030
613531141420
72322650565
oct575352724
9228141253
1099997140
115149a371
12295a4870
1317942409
14d3d016c
158ba3bb0
hex5f5d5d4

99997140 has 24 divisors (see below), whose sum is σ = 279992160. Its totient is φ = 26665888.

The previous prime is 99997129. The next prime is 99997151. The reversal of 99997140 is 4179999.

It is an interprime number because it is at equal distance from previous prime (99997129) and next prime (99997151).

It is a self number, because there is not a number n which added to its sum of digits gives 99997140.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 833250 + ... + 833369.

It is an arithmetic number, because the mean of its divisors is an integer number (11666340).

Almost surely, 299997140 is an apocalyptic number.

It is an amenable number.

99997140 is an abundant number, since it is smaller than the sum of its proper divisors (179995020).

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

99997140 is a wasteful number, since it uses less digits than its factorization.

99997140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666631 (or 1666629 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 48.

The square root of 99997140 is about 9999.8569989775. The cubic root of 99997140 is about 464.1544583377.

The spelling of 99997140 in words is "ninety-nine million, nine hundred ninety-seven thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1666619 3333238 4999857 6666476 8333095 9999714 16666190 19999428 24999285 33332380 49998570 99997140