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69749894796 = 2231723911031297
BaseRepresentation
bin100000011110101101…
…0101110111010001100
320200000222201210000220
41000331122232322030
52120321433113141
652013114151340
75016316215651
oct1007532567214
9220028653026
1069749894796
1127642aa735a
1211627122550
1367676990ca
14353970dc28
151c336aa766
hex103d6aee8c

69749894796 has 96 divisors (see below), whose sum is σ = 173334712320. Its totient is φ = 21754220544.

The previous prime is 69749894789. The next prime is 69749894807.

69749894796 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53777220 + ... + 53778516.

It is an arithmetic number, because the mean of its divisors is an integer number (1805569920).

Almost surely, 269749894796 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 69749894796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86667356160).

69749894796 is an abundant number, since it is smaller than the sum of its proper divisors (103584817524).

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

69749894796 is a wasteful number, since it uses less digits than its factorization.

69749894796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663 (or 2661 counting only the distinct ones).

The product of its digits is 1481421312, while the sum is 78.

The spelling of 69749894796 in words is "sixty-nine billion, seven hundred forty-nine million, eight hundred ninety-four thousand, seven hundred ninety-six".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 239 478 717 956 1103 1297 1434 2206 2594 2868 3309 3891 4063 4412 5188 6618 7782 8126 12189 13236 15564 16252 18751 22049 24378 37502 44098 48756 56253 66147 75004 88196 112506 132294 225012 263617 264588 309983 527234 619966 790851 929949 1054468 1239932 1430591 1581702 1859898 2861182 3163404 3719796 4291773 4481489 5269711 5722364 8583546 8962978 10539422 13444467 15809133 17167092 17925956 21078844 24320047 26888934 31618266 48640094 53777868 63236532 72960141 97280188 145920282 291840564 341911249 683822498 1025733747 1367644996 2051467494 4102934988 5812491233 11624982466 17437473699 23249964932 34874947398 69749894796