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344572940 = 225711511607
BaseRepresentation
bin10100100010011…
…100010000001100
3220000101010012202
4110202130100030
51201202313230
654105221032
711352551555
oct2442342014
9800333182
10344572940
11167558828
1297491778
1356505c1a
1433a9732c
15203b5a45
hex1489c40c

344572940 has 48 divisors (see below), whose sum is σ = 739113984. Its totient is φ = 134904000.

The previous prime is 344572939. The next prime is 344572951. The reversal of 344572940 is 49275443.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 344572894 and 344572903.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213617 + ... + 215223.

It is an arithmetic number, because the mean of its divisors is an integer number (15398208).

Almost surely, 2344572940 is an apocalyptic number.

It is an amenable number.

344572940 is an abundant number, since it is smaller than the sum of its proper divisors (394541044).

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

344572940 is a wasteful number, since it uses less digits than its factorization.

344572940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838 (or 1836 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 344572940 is about 18562.6759924317. The cubic root of 344572940 is about 701.0683957107.

The spelling of 344572940 in words is "three hundred forty-four million, five hundred seventy-two thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 71 142 151 284 302 355 604 710 755 1420 1510 1607 3020 3214 6428 8035 10721 16070 21442 32140 42884 53605 107210 114097 214420 228194 242657 456388 485314 570485 970628 1140970 1213285 2281940 2426570 4853140 17228647 34457294 68914588 86143235 172286470 344572940