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9972380 = 2251145329
BaseRepresentation
bin100110000010…
…101010011100
3200202122112102
4212002222130
510023104010
6553424232
7150522665
oct46025234
920678472
109972380
1156a1440
12340b078
1320b2122
14147836c
15d1eba5
hex982a9c

9972380 has 24 divisors (see below), whose sum is σ = 22846320. Its totient is φ = 3626240.

The previous prime is 9972379. The next prime is 9972383. The reversal of 9972380 is 832799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9972383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22445 + ... + 22884.

It is an arithmetic number, because the mean of its divisors is an integer number (951930).

Almost surely, 29972380 is an apocalyptic number.

It is an amenable number.

9972380 is an abundant number, since it is smaller than the sum of its proper divisors (12873940).

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

9972380 is a wasteful number, since it uses less digits than its factorization.

9972380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45349 (or 45347 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 9972380 is about 3157.9075350618. The cubic root of 9972380 is about 215.2449344863.

The spelling of 9972380 in words is "nine million, nine hundred seventy-two thousand, three hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 45329 90658 181316 226645 453290 498619 906580 997238 1994476 2493095 4986190 9972380