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234667980 = 223251303711
BaseRepresentation
bin11011111110010…
…11111111001100
3121100120100221200
431333023333030
5440033333410
635141425500
75546434131
oct1577137714
9540510850
10234667980
11110511588
126670b290
1339804bc1
1423248588
15159063c0
hexdfcbfcc

234667980 has 36 divisors (see below), whose sum is σ = 711826752. Its totient is φ = 62578080.

The previous prime is 234667973. The next prime is 234667981. The reversal of 234667980 is 89766432.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (234667981) 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, 651676 + ... + 652035.

Almost surely, 2234667980 is an apocalyptic number.

234667980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234667980 is an abundant number, since it is smaller than the sum of its proper divisors (477158772).

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

234667980 is a wasteful number, since it uses less digits than its factorization.

234667980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303726 (or 1303721 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 234667980 is about 15318.8765906642. The cubic root of 234667980 is about 616.8098185641.

The spelling of 234667980 in words is "two hundred thirty-four million, six hundred sixty-seven thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 1303711 2607422 3911133 5214844 6518555 7822266 11733399 13037110 15644532 19555665 23466798 26074220 39111330 46933596 58666995 78222660 117333990 234667980