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23472952380 = 22325509256199
BaseRepresentation
bin10101110111000110…
…001101010000111100
32020120212111112021200
4111313012031100330
5341033033434010
614441110455500
71460452542333
oct256706152074
966525445250
1023472952380
119a559625a9
124671064590
1322a1064047
1411c9642d1a
15925ad3cc0
hex57718d43c

23472952380 has 72 divisors (see below), whose sum is σ = 71341452000. Its totient is φ = 6247132032.

The previous prime is 23472952343. The next prime is 23472952387. The reversal of 23472952380 is 8325927432.

23472952380 is a `hidden beast` number, since 2 + 3 + 47 + 2 + 9 + 523 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23472952387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36480 + ... + 219719.

It is an arithmetic number, because the mean of its divisors is an integer number (990853500).

Almost surely, 223472952380 is an apocalyptic number.

23472952380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23472952380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35670726000).

23472952380 is an abundant number, since it is smaller than the sum of its proper divisors (47868499620).

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

23472952380 is a wasteful number, since it uses less digits than its factorization.

23472952380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256723 (or 256718 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 23472952380 in words is "twenty-three billion, four hundred seventy-two million, nine hundred fifty-two thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 509 1018 1527 2036 2545 3054 4581 5090 6108 7635 9162 10180 15270 18324 22905 30540 45810 91620 256199 512398 768597 1024796 1280995 1537194 2305791 2561990 3074388 3842985 4611582 5123980 7685970 9223164 11528955 15371940 23057910 46115820 130405291 260810582 391215873 521621164 652026455 782431746 1173647619 1304052910 1564863492 1956079365 2347295238 2608105820 3912158730 4694590476 5868238095 7824317460 11736476190 23472952380