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23440000344 = 2331397026379
BaseRepresentation
bin10101110101001000…
…100000010101011000
32020111120111101120220
4111311020200111120
5341001120002334
614433532320040
71456602500265
oct256510402530
966446441526
1023440000344
119a392a6212
124662013020
1322972974b7
1411c510626c
15922c75449
hex575220558

23440000344 has 32 divisors (see below), whose sum is σ = 59021592000. Its totient is φ = 7757121312.

The previous prime is 23440000273. The next prime is 23440000391. The reversal of 23440000344 is 44300004432.

It is a happy number.

It is a super-2 number, since 2×234400003442 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3509854 + ... + 3516525.

It is an arithmetic number, because the mean of its divisors is an integer number (1844424750).

Almost surely, 223440000344 is an apocalyptic number.

23440000344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23440000344 is an abundant number, since it is smaller than the sum of its proper divisors (35581591656).

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

23440000344 is a wasteful number, since it uses less digits than its factorization.

23440000344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7026527 (or 7026523 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 23440000344 its reverse (44300004432), we get a palindrome (67740004776).

The spelling of 23440000344 in words is "twenty-three billion, four hundred forty million, three hundred forty-four", and thus it is an aban number.

Divisors: 1 2 3 4 6 8 12 24 139 278 417 556 834 1112 1668 3336 7026379 14052758 21079137 28105516 42158274 56211032 84316548 168633096 976666681 1953333362 2930000043 3906666724 5860000086 7813333448 11720000172 23440000344