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23379655278 = 2372479717443
BaseRepresentation
bin10101110001100010…
…010011101001101110
32020100100221112201110
4111301202103221232
5340340142432103
614423535052450
71455240535200
oct256142235156
966310845643
1023379655278
119a0822a061
124645971126
132287929465
1411bb0b8770
1591c805403
hex571893a6e

23379655278 has 96 divisors (see below), whose sum is σ = 56126697984. Its totient is φ = 6470005248.

The previous prime is 23379655217. The next prime is 23379655279. The reversal of 23379655278 is 87255697332.

It is a super-2 number, since 2×233796552782 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23379655279) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1331625 + ... + 1349067.

It is an arithmetic number, because the mean of its divisors is an integer number (584653104).

Almost surely, 223379655278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23379655278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28063348992).

23379655278 is an abundant number, since it is smaller than the sum of its proper divisors (32747042706).

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

23379655278 is a wasteful number, since it uses less digits than its factorization.

23379655278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17606 (or 17599 counting only the distinct ones).

The product of its digits is 19051200, while the sum is 57.

The spelling of 23379655278 in words is "twenty-three billion, three hundred seventy-nine million, six hundred fifty-five thousand, two hundred seventy-eight".

Divisors: 1 2 3 6 7 14 21 42 47 49 94 97 98 141 147 194 282 291 294 329 582 658 679 987 1358 1974 2037 2303 4074 4559 4606 4753 6909 9118 9506 13677 13818 14259 17443 27354 28518 31913 34886 52329 63826 95739 104658 122101 191478 223391 244202 366303 446782 670173 732606 819821 854707 1340346 1639642 1691971 1709414 2459463 2564121 3383942 4918926 5075913 5128242 5738747 10151826 11477494 11843797 17216241 23687594 34432482 35531391 40171229 71062782 79522637 80342458 82906579 120513687 159045274 165813158 238567911 241027374 248719737 477135822 497439474 556658459 1113316918 1669975377 3339950754 3896609213 7793218426 11689827639 23379655278