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2469393940 = 225139497669
BaseRepresentation
bin1001001100101111…
…1111011000010100
320101002121012122211
42103023333120110
520024131101230
61045011403204
7115123334146
oct22313773024
96332535584
102469393940
1110579aa242
1258abb3504
133047a4660
14195d64c96
15e6bd242a
hex932ff614

2469393940 has 24 divisors (see below), whose sum is σ = 5584629960. Its totient is φ = 911776128.

The previous prime is 2469393937. The next prime is 2469393947. The reversal of 2469393940 is 493939642.

It can be written as a sum of positive squares in 4 ways, for example, as 15776784 + 2453617156 = 3972^2 + 49534^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2469393947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4748575 + ... + 4749094.

It is an arithmetic number, because the mean of its divisors is an integer number (232692915).

Almost surely, 22469393940 is an apocalyptic number.

2469393940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2469393940 is an abundant number, since it is smaller than the sum of its proper divisors (3115236020).

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

2469393940 is a wasteful number, since it uses less digits than its factorization.

2469393940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9497691 (or 9497689 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 49.

The square root of 2469393940 is about 49692.9968909101. The cubic root of 2469393940 is about 1351.6475431576.

The spelling of 2469393940 in words is "two billion, four hundred sixty-nine million, three hundred ninety-three thousand, nine hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 9497669 18995338 37990676 47488345 94976690 123469697 189953380 246939394 493878788 617348485 1234696970 2469393940