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30922899 = 371924079
BaseRepresentation
bin111010111110…
…1100010010011
32011012001020120
41311331202103
530404013044
63022441323
7523561140
oct165754223
964161216
1030922899
1116500917
12a433243
136539097
14416d3c7
152aac519
hex1d7d893

30922899 has 24 divisors (see below), whose sum is σ = 49743360. Its totient is φ = 16736112.

The previous prime is 30922883. The next prime is 30922901. The reversal of 30922899 is 99822903.

It is not a de Polignac number, because 30922899 - 24 = 30922883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30922899.

It is not an unprimeable number, because it can be changed into a prime (30922699) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5542 + ... + 9620.

It is an arithmetic number, because the mean of its divisors is an integer number (2072640).

Almost surely, 230922899 is an apocalyptic number.

30922899 is a deficient number, since it is larger than the sum of its proper divisors (18820461).

30922899 is a wasteful number, since it uses less digits than its factorization.

30922899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4127 (or 4108 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 30922899 is about 5560.8361781300. The cubic root of 30922899 is about 313.8774150620.

The spelling of 30922899 in words is "thirty million, nine hundred twenty-two thousand, eight hundred ninety-nine".

Divisors: 1 3 7 19 21 57 133 361 399 1083 2527 4079 7581 12237 28553 77501 85659 232503 542507 1472519 1627521 4417557 10307633 30922899