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9105972 = 223977823
BaseRepresentation
bin100010101111…
…001000110100
3122010122001020
4202233020310
54312342342
6523101140
7140254011
oct42571064
918118036
109105972
11515a4a7
1230717b0
131b6a965
1412d0708
15bed0ec
hex8af234

9105972 has 24 divisors (see below), whose sum is σ = 21469056. Its totient is φ = 3003648.

The previous prime is 9105949. The next prime is 9105973. The reversal of 9105972 is 2795019.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9105973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2748 + ... + 5075.

It is an arithmetic number, because the mean of its divisors is an integer number (894544).

Almost surely, 29105972 is an apocalyptic number.

It is an amenable number.

9105972 is an abundant number, since it is smaller than the sum of its proper divisors (12363084).

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

9105972 is a wasteful number, since it uses less digits than its factorization.

9105972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7927 (or 7925 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 9105972 is about 3017.6103128138. The cubic root of 9105972 is about 208.8216085738.

The spelling of 9105972 in words is "nine million, one hundred five thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 97 194 291 388 582 1164 7823 15646 23469 31292 46938 93876 758831 1517662 2276493 3035324 4552986 9105972