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69893611876 = 221126121972
BaseRepresentation
bin100000100010111111…
…0111110000101100100
320200102000011100210201
41001011332332011210
52121120231040001
652035250400244
75023012620124
oct1010576760544
9220360140721
1069893611876
1127707138100
1211667290084
13678b3a82ba
143550840c84
151c410e8501
hex1045fbe164

69893611876 has 81 divisors (see below), whose sum is σ = 137381600811. Its totient is φ = 31090382400.

The previous prime is 69893611771. The next prime is 69893611877. The reversal of 69893611876 is 67811639896.

The square root of 69893611876 is 264374.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 104652900 + 69788958976 = 10230^2 + 264176^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69893611877) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 354789810 + ... + 354790006.

Almost surely, 269893611876 is an apocalyptic number.

69893611876 is the 264374-th square number.

It is an amenable number.

69893611876 is a deficient number, since it is larger than the sum of its proper divisors (67487988935).

69893611876 is a wasteful number, since it uses less digits than its factorization.

69893611876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 271 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 64.

Multiplying 69893611876 by its sum of digits (64), we get a square (4473191160064 = 21149922).

The spelling of 69893611876 in words is "sixty-nine billion, eight hundred ninety-three million, six hundred eleven thousand, eight hundred seventy-six".

Divisors: 1 2 4 11 22 44 61 121 122 197 242 244 394 484 671 788 1342 2167 2684 3721 4334 7381 7442 8668 12017 14762 14884 23837 24034 29524 38809 40931 47674 48068 77618 81862 95348 132187 155236 163724 264374 426899 450241 528748 733037 853798 900482 1454057 1466074 1707596 1800964 2367349 2908114 2932148 4695889 4734698 5816228 8063407 9391778 9469396 16126814 18783556 26040839 32253628 52081678 88697477 104163356 144408289 177394954 286449229 288816578 354789908 572898458 577633156 1145796916 1588491179 3176982358 6353964716 17473402969 34946805938 69893611876