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99921950 = 25219107983
BaseRepresentation
bin1011111010010…
…11000000011110
320222000120010222
411331023000132
5201040000300
613525401342
72322215432
oct575130036
9228016128
1099921950
1151448927
1229569252
131791711b
14d3b09c2
158b8b785
hex5f4b01e

99921950 has 48 divisors (see below), whose sum is σ = 197665920. Its totient is φ = 37473120.

The previous prime is 99921947. The next prime is 99921973. The reversal of 99921950 is 5912999.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101159 + ... + 102141.

It is an arithmetic number, because the mean of its divisors is an integer number (4118040).

Almost surely, 299921950 is an apocalyptic number.

99921950 is a deficient number, since it is larger than the sum of its proper divisors (97743970).

99921950 is a wasteful number, since it uses less digits than its factorization.

99921950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121 (or 1116 counting only the distinct ones).

The product of its (nonzero) digits is 65610, while the sum is 44.

The square root of 99921950 is about 9996.0967382274. The cubic root of 99921950 is about 464.0380932608.

The spelling of 99921950 in words is "ninety-nine million, nine hundred twenty-one thousand, nine hundred fifty".

Divisors: 1 2 5 10 19 25 38 50 95 107 190 214 475 535 950 983 1070 1966 2033 2675 4066 4915 5350 9830 10165 18677 20330 24575 37354 49150 50825 93385 101650 105181 186770 210362 466925 525905 933850 1051810 1998439 2629525 3996878 5259050 9992195 19984390 49960975 99921950