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23502480 = 243597927
BaseRepresentation
bin101100110100…
…1111010010000
31122020001100020
41121221322100
522004034410
62155423440
7403524231
oct131517220
948201306
1023502480
11122a2841
127a54b80
134b3b6c1
14319b088
1520e3a70
hex1669e90

23502480 has 40 divisors (see below), whose sum is σ = 72858432. Its totient is φ = 6267264.

The previous prime is 23502463. The next prime is 23502533. The reversal of 23502480 is 8420532.

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

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 23502480.

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, 48724 + ... + 49203.

Almost surely, 223502480 is an apocalyptic number.

23502480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23502480 is an abundant number, since it is smaller than the sum of its proper divisors (49355952).

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

23502480 is a wasteful number, since it uses less digits than its factorization.

23502480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97943 (or 97937 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 23502480 is about 4847.9356431372. The cubic root of 23502480 is about 286.4427913757.

It can be divided in two parts, 23 and 502480, that added together give a triangular number (502503 = T1002).

The spelling of 23502480 in words is "twenty-three million, five hundred two thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 97927 195854 293781 391708 489635 587562 783416 979270 1175124 1468905 1566832 1958540 2350248 2937810 3917080 4700496 5875620 7834160 11751240 23502480