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2470340 = 225123517
BaseRepresentation
bin1001011011000111000100
311122111200002
421123013010
51113022330
6124540432
726666105
oct11330704
94574602
102470340
111438004
129b1718
13686552
144843ac
1533be45
hex25b1c4

2470340 has 12 divisors (see below), whose sum is σ = 5187756. Its totient is φ = 988128.

The previous prime is 2470339. The next prime is 2470387. The reversal of 2470340 is 430742.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 262144 + 2208196 = 512^2 + 1486^2 .

It is a super-2 number, since 2×24703402 = 12205159431200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 123517 = 2470340 / (2 + 4 + 7 + 0 + 3 + 4 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61739 + ... + 61778.

It is an arithmetic number, because the mean of its divisors is an integer number (432313).

22470340 is an apocalyptic number.

2470340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2470340 is an abundant number, since it is smaller than the sum of its proper divisors (2717416).

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

2470340 is a wasteful number, since it uses less digits than its factorization.

2470340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123526 (or 123524 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 2470340 is about 1571.7315292377. The cubic root of 2470340 is about 135.1820132929.

The spelling of 2470340 in words is "two million, four hundred seventy thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 123517 247034 494068 617585 1235170 2470340