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102030994 = 21319320333
BaseRepresentation
bin1100001010011…
…01111010010010
321002222201012201
412011031322102
5202104442434
614042513414
72346151312
oct605157222
9232881181
10102030994
115265943a
122a20586a
13181a5090
14d79d442
158e56614
hex614de92

102030994 has 16 divisors (see below), whose sum is σ = 165681432. Its totient is φ = 46844928.

The previous prime is 102030953. The next prime is 102031037. The reversal of 102030994 is 499030201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 84916225 + 17114769 = 9215^2 + 4137^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5149 + ... + 15184.

Almost surely, 2102030994 is an apocalyptic number.

102030994 is a deficient number, since it is larger than the sum of its proper divisors (63650438).

102030994 is a wasteful number, since it uses less digits than its factorization.

102030994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20541.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 102030994 is about 10101.0392534630. The cubic root of 102030994 is about 467.2801929307.

The spelling of 102030994 in words is "one hundred two million, thirty thousand, nine hundred ninety-four".

Divisors: 1 2 13 26 193 386 2509 5018 20333 40666 264329 528658 3924269 7848538 51015497 102030994