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4272990 = 235142433
BaseRepresentation
bin10000010011001101011110
322001002102220
4100103031132
52043213430
6231330210
751214461
oct20231536
98032386
104272990
1124593a7
121520966
13b67bc7
147d32d8
15596110
hex41335e

4272990 has 16 divisors (see below), whose sum is σ = 10255248. Its totient is φ = 1139456.

The previous prime is 4272973. The next prime is 4273033. The reversal of 4272990 is 992724.

It is a congruent number.

It is an unprimeable number.

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, 71187 + ... + 71246.

It is an arithmetic number, because the mean of its divisors is an integer number (640953).

Almost surely, 24272990 is an apocalyptic number.

4272990 is an abundant number, since it is smaller than the sum of its proper divisors (5982258).

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

4272990 is a wasteful number, since it uses less digits than its factorization.

4272990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142443.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 4272990 is about 2067.1211865781. The cubic root of 4272990 is about 162.2721382293.

The spelling of 4272990 in words is "four million, two hundred seventy-two thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 142433 284866 427299 712165 854598 1424330 2136495 4272990