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297642972 = 223112254871
BaseRepresentation
bin10001101111011…
…010101111011100
3202202001211101210
4101233122233130
51102144033342
645311304420
710242631524
oct2157325734
9682054353
10297642972
11143014630
128381b110
1349884003
142b75c684
151b1e579c
hex11bdabdc

297642972 has 24 divisors (see below), whose sum is σ = 757636992. Its totient is φ = 90194800.

The previous prime is 297642971. The next prime is 297642991. The reversal of 297642972 is 279246792.

297642972 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (297642971) 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, 1127304 + ... + 1127567.

It is an arithmetic number, because the mean of its divisors is an integer number (31568208).

Almost surely, 2297642972 is an apocalyptic number.

297642972 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

297642972 is an abundant number, since it is smaller than the sum of its proper divisors (459994020).

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

297642972 is a wasteful number, since it uses less digits than its factorization.

297642972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2254889 (or 2254887 counting only the distinct ones).

The product of its digits is 762048, while the sum is 48.

The square root of 297642972 is about 17252.3323640602. The cubic root of 297642972 is about 667.6751471259.

The spelling of 297642972 in words is "two hundred ninety-seven million, six hundred forty-two thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 2254871 4509742 6764613 9019484 13529226 24803581 27058452 49607162 74410743 99214324 148821486 297642972