Search a number
-
+
2420481 = 37791459
BaseRepresentation
bin1001001110111100000001
311112222021110
421032330001
51104423411
6123513533
726400540
oct11167401
94488243
102420481
1114035a8
129888a9
1366994b
14470157
1532c2a6
hex24ef01

2420481 has 16 divisors (see below), whose sum is σ = 3737600. Its totient is φ = 1364688.

The previous prime is 2420479. The next prime is 2420519. The reversal of 2420481 is 1840242.

It is not a de Polignac number, because 2420481 - 21 = 2420479 is a prime.

It is a super-2 number, since 2×24204812 = 11717456542722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 930 + ... + 2388.

It is an arithmetic number, because the mean of its divisors is an integer number (233600).

22420481 is an apocalyptic number.

2420481 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2420481 is a deficient number, since it is larger than the sum of its proper divisors (1317119).

2420481 is a wasteful number, since it uses less digits than its factorization.

2420481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 2420481 is about 1555.7895101845. The cubic root of 2420481 is about 134.2663633221.

The spelling of 2420481 in words is "two million, four hundred twenty thousand, four hundred eighty-one".

Divisors: 1 3 7 21 79 237 553 1459 1659 4377 10213 30639 115261 345783 806827 2420481