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23491798960 = 245741949641
BaseRepresentation
bin10101111000001110…
…000110011110110000
32020122011222000221011
4111320032012132300
5341102400031320
614443022440304
71461101665540
oct257016063660
966564860834
1023491798960
119a65565293
124677433094
1322a4c32476
1411cbd4b320
159275a805a
hex5783867b0

23491798960 has 40 divisors (see below), whose sum is σ = 62421067296. Its totient is φ = 8054330880.

The previous prime is 23491798943. The next prime is 23491798963. The reversal of 23491798960 is 6989719432.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 23491798895 and 23491798904.

It is not an unprimeable number, because it can be changed into a prime (23491798963) 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, 20974261 + ... + 20975380.

Almost surely, 223491798960 is an apocalyptic number.

23491798960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23491798960 is an abundant number, since it is smaller than the sum of its proper divisors (38929268336).

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

23491798960 is a wasteful number, since it uses less digits than its factorization.

23491798960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41949661 (or 41949655 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 58.

The spelling of 23491798960 in words is "twenty-three billion, four hundred ninety-one million, seven hundred ninety-eight thousand, nine hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 41949641 83899282 167798564 209748205 293647487 335597128 419496410 587294974 671194256 838992820 1174589948 1468237435 1677985640 2349179896 2936474870 3355971280 4698359792 5872949740 11745899480 23491798960