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800888972 = 221321769691
BaseRepresentation
bin101111101111001…
…001100010001100
32001211000101010112
4233233021202030
53120011421342
6211245455152
725563305162
oct5757114214
92054011115
10800888972
11381098814
121a42714b8
13c9c04700
147851b232
154a4a0682
hex2fbc988c

800888972 has 36 divisors (see below), whose sum is σ = 1606958136. Its totient is φ = 347892480.

The previous prime is 800888971. The next prime is 800888983. The reversal of 800888972 is 279888008.

It is a self number, because there is not a number n which added to its sum of digits gives 800888972.

It is not an unprimeable number, because it can be changed into a prime (800888971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23354 + ... + 46337.

It is an arithmetic number, because the mean of its divisors is an integer number (44637726).

Almost surely, 2800888972 is an apocalyptic number.

It is an amenable number.

800888972 is an abundant number, since it is smaller than the sum of its proper divisors (806069164).

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

800888972 is a wasteful number, since it uses less digits than its factorization.

800888972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69738 (or 69723 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 50.

The square root of 800888972 is about 28299.9818374500. The cubic root of 800888972 is about 928.6614929784.

The spelling of 800888972 in words is "eight hundred million, eight hundred eighty-eight thousand, nine hundred seventy-two".

Divisors: 1 2 4 13 17 26 34 52 68 169 221 338 442 676 884 2873 5746 11492 69691 139382 278764 905983 1184747 1811966 2369494 3623932 4738988 11777779 15401711 23555558 30803422 47111116 61606844 200222243 400444486 800888972