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23123324040 = 2335192694367
BaseRepresentation
bin10101100010010000…
…011110110010001000
32012200111121120100220
4111202100132302020
5334324032332130
614342301030040
71446006003615
oct254220366210
965614546326
1023123324040
119896571663
124593b55320
1322467ab07b
14119503150c
15905070410
hex56241ec88

23123324040 has 32 divisors (see below), whose sum is σ = 69369972480. Its totient is φ = 6166219712.

The previous prime is 23123324023. The next prime is 23123324051. The reversal of 23123324040 is 4042332132.

It is a super-2 number, since 2×231233240402 (a number of 22 digits) contains 22 as substring.

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 23123324040.

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, 96347064 + ... + 96347303.

It is an arithmetic number, because the mean of its divisors is an integer number (2167811640).

Almost surely, 223123324040 is an apocalyptic number.

23123324040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23123324040 is an abundant number, since it is smaller than the sum of its proper divisors (46246648440).

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

23123324040 is a wasteful number, since it uses less digits than its factorization.

23123324040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192694381 (or 192694377 counting only the distinct ones).

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

Adding to 23123324040 its reverse (4042332132), we get a palindrome (27165656172).

The spelling of 23123324040 in words is "twenty-three billion, one hundred twenty-three million, three hundred twenty-four thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 192694367 385388734 578083101 770777468 963471835 1156166202 1541554936 1926943670 2312332404 2890415505 3853887340 4624664808 5780831010 7707774680 11561662020 23123324040