Search a number
-
+
109925919 = 3212213991
BaseRepresentation
bin1101000110101…
…01011000011111
321122211211000100
412203111120133
5211120112134
614524032143
72503232505
oct643253037
9248754010
10109925919
1157060a74
1230992653
1319a0a72c
1410856675
1599b5999
hex68d561f

109925919 has 6 divisors (see below), whose sum is σ = 158781896. Its totient is φ = 73283940.

The previous prime is 109925897. The next prime is 109925951. The reversal of 109925919 is 919529901.

It is not a de Polignac number, because 109925919 - 224 = 93148703 is a prime.

It is a super-2 number, since 2×1099259192 = 24167415335989122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109925989) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6106987 + ... + 6107004.

Almost surely, 2109925919 is an apocalyptic number.

109925919 is a deficient number, since it is larger than the sum of its proper divisors (48855977).

109925919 is a wasteful number, since it uses less digits than its factorization.

109925919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12213997 (or 12213994 counting only the distinct ones).

The product of its (nonzero) digits is 65610, while the sum is 45.

The square root of 109925919 is about 10484.5562137842. The cubic root of 109925919 is about 479.0343999830.

The spelling of 109925919 in words is "one hundred nine million, nine hundred twenty-five thousand, nine hundred nineteen".

Divisors: 1 3 9 12213991 36641973 109925919