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97144470 = 23251079383
BaseRepresentation
bin1011100101001…
…00111010010110
320202210110011100
411302210322112
5144332110340
613350050530
72256500013
oct562447226
9222713140
1097144470
114a921095
1228649a46
1317183b47
14cc8a70a
1587dd830
hex5ca4e96

97144470 has 24 divisors (see below), whose sum is σ = 252575856. Its totient is φ = 25905168.

The previous prime is 97144469. The next prime is 97144471. The reversal of 97144470 is 7444179.

It is an interprime number because it is at equal distance from previous prime (97144469) and next prime (97144471).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97144471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 539602 + ... + 539781.

It is an arithmetic number, because the mean of its divisors is an integer number (10523994).

Almost surely, 297144470 is an apocalyptic number.

97144470 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

97144470 is an abundant number, since it is smaller than the sum of its proper divisors (155431386).

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

97144470 is a wasteful number, since it uses less digits than its factorization.

97144470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079396 (or 1079393 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 97144470 is about 9856.1894259394. The cubic root of 97144470 is about 459.6980848089.

The spelling of 97144470 in words is "ninety-seven million, one hundred forty-four thousand, four hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1079383 2158766 3238149 5396915 6476298 9714447 10793830 16190745 19428894 32381490 48572235 97144470