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307162420 = 22515358121
BaseRepresentation
bin10010010011101…
…110110100110100
3210101222110121221
4102103232310310
51112113144140
650251320124
710416560155
oct2223566464
9711873557
10307162420
11148426744
1286a50044
134b837c16
142cb1992c
151be7614a
hex124eed34

307162420 has 12 divisors (see below), whose sum is σ = 645041124. Its totient is φ = 122864960.

The previous prime is 307162411. The next prime is 307162421. The reversal of 307162420 is 24261703.

It can be written as a sum of positive squares in 2 ways, for example, as 37283236 + 269879184 = 6106^2 + 16428^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307162421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7679041 + ... + 7679080.

It is an arithmetic number, because the mean of its divisors is an integer number (53753427).

Almost surely, 2307162420 is an apocalyptic number.

It is an amenable number.

307162420 is an abundant number, since it is smaller than the sum of its proper divisors (337878704).

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

307162420 is a wasteful number, since it uses less digits than its factorization.

307162420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15358130 (or 15358128 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 307162420 is about 17526.0497545796. The cubic root of 307162420 is about 674.7186170573.

The spelling of 307162420 in words is "three hundred seven million, one hundred sixty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 15358121 30716242 61432484 76790605 153581210 307162420