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2471380 = 225294261
BaseRepresentation
bin1001011011010111010100
311122120002121
421123113110
51113041010
6124545324
730002122
oct11332724
94576077
102471380
11143886a
129b2244
13686b72
14484912
1533c3da
hex25b5d4

2471380 has 24 divisors (see below), whose sum is σ = 5370120. Its totient is φ = 954240.

The previous prime is 2471377. The next prime is 2471383. The reversal of 2471380 is 831742.

It is an interprime number because it is at equal distance from previous prime (2471377) and next prime (2471383).

It can be written as a sum of positive squares in 4 ways, for example, as 868624 + 1602756 = 932^2 + 1266^2 .

It is a super-2 number, since 2×24713802 = 12215438208800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2471383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1551 + ... + 2710.

It is an arithmetic number, because the mean of its divisors is an integer number (223755).

22471380 is an apocalyptic number.

2471380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2471380 is an abundant number, since it is smaller than the sum of its proper divisors (2898740).

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

2471380 is a wasteful number, since it uses less digits than its factorization.

2471380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4299 (or 4297 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 2471380 is about 1572.0623397308. The cubic root of 2471380 is about 135.2009809343.

The spelling of 2471380 in words is "two million, four hundred seventy-one thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 4261 8522 17044 21305 42610 85220 123569 247138 494276 617845 1235690 2471380