Search a number
-
+
23103225649 = 7367356343
BaseRepresentation
bin10101100001000011…
…110011111100110001
32012122002210110120001
4111201003303330301
5334303411210044
614340302150001
71445343115000
oct254103637461
965562713501
1023103225649
119886194419
124589282301
132242591c2a
1411924bcc37
159034002d4
hex5610f3f31

23103225649 has 8 divisors (see below), whose sum is σ = 26942537600. Its totient is φ = 19802764548.

The previous prime is 23103225623. The next prime is 23103225653. The reversal of 23103225649 is 94652230132.

It is a de Polignac number, because none of the positive numbers 2k-23103225649 is a prime.

It is a super-2 number, since 2×231032256492 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23103225619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33677829 + ... + 33678514.

It is an arithmetic number, because the mean of its divisors is an integer number (3367817200).

Almost surely, 223103225649 is an apocalyptic number.

It is an amenable number.

23103225649 is a deficient number, since it is larger than the sum of its proper divisors (3839311951).

23103225649 is an frugal number, since it uses more digits than its factorization.

23103225649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67356364 (or 67356350 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 23103225649 in words is "twenty-three billion, one hundred three million, two hundred twenty-five thousand, six hundred forty-nine".

Divisors: 1 7 49 343 67356343 471494401 3300460807 23103225649