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23103020 = 2251155151
BaseRepresentation
bin101100000100…
…0011000101100
31121110202101102
41120020120230
521403244040
62143102232
7400241513
oct130103054
947422342
1023103020
111204a706
1278a1978
134a2b935
1430d567a
152065515
hex160862c

23103020 has 12 divisors (see below), whose sum is σ = 48516384. Its totient is φ = 9241200.

The previous prime is 23103019. The next prime is 23103037. The reversal of 23103020 is 2030132.

It is a junction number, because it is equal to n+sod(n) for n = 23102992 and 23103010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577556 + ... + 577595.

It is an arithmetic number, because the mean of its divisors is an integer number (4043032).

Almost surely, 223103020 is an apocalyptic number.

23103020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23103020 is an abundant number, since it is smaller than the sum of its proper divisors (25413364).

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

23103020 is a wasteful number, since it uses less digits than its factorization.

23103020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155160 (or 1155158 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 23103020 is about 4806.5601005293. The cubic root of 23103020 is about 284.8106673139.

Adding to 23103020 its reverse (2030132), we get a palindrome (25133152).

The spelling of 23103020 in words is "twenty-three million, one hundred three thousand, twenty".

Divisors: 1 2 4 5 10 20 1155151 2310302 4620604 5775755 11551510 23103020