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345896980 = 2251113120943
BaseRepresentation
bin10100100111011…
…111100000010100
3220002212101110021
4110213133200110
51202022200410
654153434524
711400035002
oct2447374024
9802771407
10345896980
11168282580
1297a0ba44
135687a790
1433d1da72
1520577eda
hex149df814

345896980 has 48 divisors (see below), whose sum is σ = 853380864. Its totient is φ = 116104320.

The previous prime is 345896959. The next prime is 345896981. The reversal of 345896980 is 89698543.

It is a happy number.

345896980 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345896981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57612 + ... + 63331.

It is an arithmetic number, because the mean of its divisors is an integer number (17778768).

Almost surely, 2345896980 is an apocalyptic number.

It is an amenable number.

345896980 is an abundant number, since it is smaller than the sum of its proper divisors (507483884).

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

345896980 is a wasteful number, since it uses less digits than its factorization.

345896980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120976 (or 120974 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 52.

The square root of 345896980 is about 18598.3058368229. The cubic root of 345896980 is about 701.9652123031.

The spelling of 345896980 in words is "three hundred forty-five million, eight hundred ninety-six thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 13 20 22 26 44 52 55 65 110 130 143 220 260 286 572 715 1430 2860 120943 241886 483772 604715 1209430 1330373 1572259 2418860 2660746 3144518 5321492 6289036 6651865 7861295 13303730 15722590 17294849 26607460 31445180 34589698 69179396 86474245 172948490 345896980