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23240923420 = 22511138126197
BaseRepresentation
bin10101101001010001…
…000101100100011100
32012222200220020101111
4111221101011210130
5340044134022140
614402101351404
71451634406141
oct255121054434
965880806344
1023240923420
119946993830
124607408564
132264c743c0
1411a68c43c8
1591054e7ea
hex56944591c

23240923420 has 48 divisors (see below), whose sum is σ = 57338453088. Its totient is φ = 7801148160.

The previous prime is 23240923411. The next prime is 23240923423. The reversal of 23240923420 is 2432904232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23240923423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4060239 + ... + 4065958.

It is an arithmetic number, because the mean of its divisors is an integer number (1194551106).

Almost surely, 223240923420 is an apocalyptic number.

23240923420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23240923420 is an abundant number, since it is smaller than the sum of its proper divisors (34097529668).

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

23240923420 is a wasteful number, since it uses less digits than its factorization.

23240923420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8126230 (or 8126228 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The spelling of 23240923420 in words is "twenty-three billion, two hundred forty million, nine hundred twenty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 13 20 22 26 44 52 55 65 110 130 143 220 260 286 572 715 1430 2860 8126197 16252394 32504788 40630985 81261970 89388167 105640561 162523940 178776334 211281122 357552668 422562244 446940835 528202805 893881670 1056405610 1162046171 1787763340 2112811220 2324092342 4648184684 5810230855 11620461710 23240923420