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69040205872 = 2411823476639
BaseRepresentation
bin100000001001100011…
…1011111000000110000
320121012112022211211221
41000103013133000300
52112343243041442
651414443114424
74662611032021
oct1002307370060
9217175284757
1069040205872
112730943a590
1211469512a14
136683646931
1434ad372c48
151be1222467
hex10131df030

69040205872 has 40 divisors (see below), whose sum is σ = 146103505920. Its totient is φ = 31343714880.

The previous prime is 69040205867. The next prime is 69040205873. The reversal of 69040205872 is 27850204096.

It is not an unprimeable number, because it can be changed into a prime (69040205873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93472 + ... + 383167.

It is an arithmetic number, because the mean of its divisors is an integer number (3652587648).

Almost surely, 269040205872 is an apocalyptic number.

It is an amenable number.

69040205872 is an abundant number, since it is smaller than the sum of its proper divisors (77063300048).

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

69040205872 is a wasteful number, since it uses less digits than its factorization.

69040205872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477481 (or 477475 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 69040205872 in words is "sixty-nine billion, forty million, two hundred five thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 11 16 22 44 88 176 823 1646 3292 6584 9053 13168 18106 36212 72424 144848 476639 953278 1906556 3813112 5243029 7626224 10486058 20972116 41944232 83888464 392273897 784547794 1569095588 3138191176 4315012867 6276382352 8630025734 17260051468 34520102936 69040205872