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23133404040 = 2335316218657
BaseRepresentation
bin10101100010110110…
…111011101110001000
32012201012120200112020
4111202312323232020
5334334122412130
614343301044440
71446160455435
oct254266735610
965635520466
1023133404040
1198a122693a
1245973b6720
1322488ca176
1411964d6b8c
15905db1e10
hex562dbbb88

23133404040 has 64 divisors (see below), whose sum is σ = 71638940160. Its totient is φ = 5969909760.

The previous prime is 23133404033. The next prime is 23133404051. The reversal of 23133404040 is 4040433132.

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

It is a self number, because there is not a number n which added to its sum of digits gives 23133404040.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3105609 + ... + 3113048.

It is an arithmetic number, because the mean of its divisors is an integer number (1119358440).

Almost surely, 223133404040 is an apocalyptic number.

23133404040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23133404040 is an abundant number, since it is smaller than the sum of its proper divisors (48505536120).

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

23133404040 is a wasteful number, since it uses less digits than its factorization.

23133404040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6218702 (or 6218698 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 23133404040 its reverse (4040433132), we get a palindrome (27173837172).

The spelling of 23133404040 in words is "twenty-three billion, one hundred thirty-three million, four hundred four thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 31 40 60 62 93 120 124 155 186 248 310 372 465 620 744 930 1240 1860 3720 6218657 12437314 18655971 24874628 31093285 37311942 49749256 62186570 74623884 93279855 124373140 149247768 186559710 192778367 248746280 373119420 385556734 578335101 746238840 771113468 963891835 1156670202 1542226936 1927783670 2313340404 2891675505 3855567340 4626680808 5783351010 7711134680 11566702020 23133404040