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69876872 = 2313671893
BaseRepresentation
bin1000010101000…
…11110010001000
311212111010001022
410022203302020
5120342024442
610533412012
71505641442
oct412436210
9155433038
1069876872
113649758a
121b49a008
1311627780
1493cd492
1562043d2
hex42a3c88

69876872 has 16 divisors (see below), whose sum is σ = 141097740. Its totient is φ = 32250816.

The previous prime is 69876871. The next prime is 69876887. The reversal of 69876872 is 27867896.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 57668836 + 12208036 = 7594^2 + 3494^2 .

It is not an unprimeable number, because it can be changed into a prime (69876871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335843 + ... + 336050.

Almost surely, 269876872 is an apocalyptic number.

It is an amenable number.

69876872 is an abundant number, since it is smaller than the sum of its proper divisors (71220868).

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

69876872 is a wasteful number, since it uses less digits than its factorization.

69876872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671912 (or 671908 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 53.

The square root of 69876872 is about 8359.2387213191. The cubic root of 69876872 is about 411.8867473928.

The spelling of 69876872 in words is "sixty-nine million, eight hundred seventy-six thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 13 26 52 104 671893 1343786 2687572 5375144 8734609 17469218 34938436 69876872