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23078854128 = 2431168363997
BaseRepresentation
bin10101011111100110…
…110101110111110000
32012120101221021010010
4111133212311313300
5334231141313003
614334031534520
71444626011001
oct253746656760
965511837103
1023078854128
119873458770
12458108a440
13223a50ab05
14118d1771a8
159011d9003
hex55f9b5df0

23078854128 has 80 divisors (see below), whose sum is σ = 65136652416. Its totient is φ = 6983243520.

The previous prime is 23078854109. The next prime is 23078854159. The reversal of 23078854128 is 82145887032.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328626 + ... + 392622.

Almost surely, 223078854128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23078854128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32568326208).

23078854128 is an abundant number, since it is smaller than the sum of its proper divisors (42057798288).

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

23078854128 is a wasteful number, since it uses less digits than its factorization.

23078854128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64702 (or 64696 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 48.

The spelling of 23078854128 in words is "twenty-three billion, seventy-eight million, eight hundred fifty-four thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 132 176 264 528 683 1366 2049 2732 4098 5464 7513 8196 10928 15026 16392 22539 30052 32784 45078 60104 63997 90156 120208 127994 180312 191991 255988 360624 383982 511976 703967 767964 1023952 1407934 1535928 2111901 2815868 3071856 4223802 5631736 8447604 11263472 16895208 33790416 43709951 87419902 131129853 174839804 262259706 349679608 480809461 524519412 699359216 961618922 1049038824 1442428383 1923237844 2098077648 2884856766 3846475688 5769713532 7692951376 11539427064 23078854128