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672790430 = 251329473797
BaseRepresentation
bin101000000110011…
…111011110011110
31201212222021222002
4220012133132132
52334213243210
6150432122302
722446424064
oct5006373636
91655867862
10672790430
11315855454
12169396392
13a9503560
14654d4034
153e0ea4a5
hex2819f79e

672790430 has 64 divisors (see below), whose sum is σ = 1378218240. Its totient is φ = 234683904.

The previous prime is 672790403. The next prime is 672790451. The reversal of 672790430 is 34097276.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175292 + ... + 179088.

It is an arithmetic number, because the mean of its divisors is an integer number (21534660).

Almost surely, 2672790430 is an apocalyptic number.

672790430 is an abundant number, since it is smaller than the sum of its proper divisors (705427810).

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

672790430 is a wasteful number, since it uses less digits than its factorization.

672790430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3893.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 672790430 is about 25938.2040627334. The cubic root of 672790430 is about 876.2471163646.

The spelling of 672790430 in words is "six hundred seventy-two million, seven hundred ninety thousand, four hundred thirty".

Divisors: 1 2 5 10 13 26 29 47 58 65 94 130 145 235 290 377 470 611 754 1222 1363 1885 2726 3055 3770 3797 6110 6815 7594 13630 17719 18985 35438 37970 49361 88595 98722 110113 177190 178459 220226 246805 356918 493610 550565 892295 1101130 1431469 1784590 2319967 2862938 4639934 5175311 7157345 10350622 11599835 14314690 23199670 25876555 51753110 67279043 134558086 336395215 672790430