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307100340 = 223251706113
BaseRepresentation
bin10010010011011…
…111101010110100
3210101212022110200
4102103133222310
51112104202330
650250120500
710416211161
oct2223375264
9711768420
10307100340
11148394038
1286a20130
134b8158a1
142cb01068
151be62a60
hex124dfab4

307100340 has 36 divisors (see below), whose sum is σ = 931538244. Its totient is φ = 81893376.

The previous prime is 307100323. The next prime is 307100341. The reversal of 307100340 is 43001703.

307100340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 135070884 + 172029456 = 11622^2 + 13116^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307100341) 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, 852877 + ... + 853236.

Almost surely, 2307100340 is an apocalyptic number.

307100340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

307100340 is an abundant number, since it is smaller than the sum of its proper divisors (624437904).

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

307100340 is a wasteful number, since it uses less digits than its factorization.

307100340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706128 (or 1706123 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 307100340 is about 17524.2785871487. The cubic root of 307100340 is about 674.6731586383.

The spelling of 307100340 in words is "three hundred seven million, one hundred thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 1706113 3412226 5118339 6824452 8530565 10236678 15355017 17061130 20473356 25591695 30710034 34122260 51183390 61420068 76775085 102366780 153550170 307100340