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345112740 = 223257273899
BaseRepresentation
bin10100100100100…
…000000010100100
3220001101112200100
4110210200002210
51201322101430
654124544100
711360260410
oct2444400244
9801345610
10345112740
11167897345
12976b2030
135666482b
1433b97d40
1520470960
hex149200a4

345112740 has 72 divisors (see below), whose sum is σ = 1196395200. Its totient is φ = 78882624.

The previous prime is 345112709. The next prime is 345112741. The reversal of 345112740 is 47211543.

It is not an unprimeable number, because it can be changed into a prime (345112741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135690 + ... + 138209.

It is an arithmetic number, because the mean of its divisors is an integer number (16616600).

Almost surely, 2345112740 is an apocalyptic number.

345112740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

345112740 is an abundant number, since it is smaller than the sum of its proper divisors (851282460).

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

345112740 is a wasteful number, since it uses less digits than its factorization.

345112740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273921 (or 273916 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 345112740 is about 18577.2102318943. The cubic root of 345112740 is about 701.4342972187.

The spelling of 345112740 in words is "three hundred forty-five million, one hundred twelve thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 70 84 90 105 126 140 180 210 252 315 420 630 1260 273899 547798 821697 1095596 1369495 1643394 1917293 2465091 2738990 3286788 3834586 4108485 4930182 5477980 5751879 7669172 8216970 9586465 9860364 11503758 12325455 16433940 17255637 19172930 23007516 24650910 28759395 34511274 38345860 49301820 57518790 69022548 86278185 115037580 172556370 345112740