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307143342 = 232111551229
BaseRepresentation
bin10010010011101…
…010001010101110
3210101221111110100
4102103222022232
51112112041332
650251051530
710416450432
oct2223521256
9711844410
10307143342
11148413380
1286a40ba6
134b82c32c
142cb129c2
151be7067c
hex124ea2ae

307143342 has 24 divisors (see below), whose sum is σ = 725975640. Its totient is φ = 93073680.

The previous prime is 307143337. The next prime is 307143349. The reversal of 307143342 is 243341703.

307143342 is a `hidden beast` number, since 307 + 14 + 3 + 342 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307143349) 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, 775417 + ... + 775812.

It is an arithmetic number, because the mean of its divisors is an integer number (30248985).

Almost surely, 2307143342 is an apocalyptic number.

307143342 is an abundant number, since it is smaller than the sum of its proper divisors (418832298).

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

307143342 is a wasteful number, since it uses less digits than its factorization.

307143342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551248 (or 1551245 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 307143342 is about 17525.5054705991. The cubic root of 307143342 is about 674.7046477396.

The spelling of 307143342 in words is "three hundred seven million, one hundred forty-three thousand, three hundred forty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 1551229 3102458 4653687 9307374 13961061 17063519 27922122 34127038 51190557 102381114 153571671 307143342