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28151726952 = 2331172988623
BaseRepresentation
bin11010001101111110…
…010100001101101000
32200122221102220101210
4122031332110031220
5430123320230302
620533245113120
72014424505456
oct321576241550
980587386353
1028151726952
1110a36a09148
125557b587a0
1328684a29cb
141510ba79d6
15aeb73766c
hex68df94368

28151726952 has 16 divisors (see below), whose sum is σ = 70379317440. Its totient is φ = 9383908976.

The previous prime is 28151726923. The next prime is 28151726957. The reversal of 28151726952 is 25962715182.

It is not an unprimeable number, because it can be changed into a prime (28151726957) 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, 586494288 + ... + 586494335.

It is an arithmetic number, because the mean of its divisors is an integer number (4398707340).

Almost surely, 228151726952 is an apocalyptic number.

It is an amenable number.

28151726952 is an abundant number, since it is smaller than the sum of its proper divisors (42227590488).

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

28151726952 is a wasteful number, since it uses less digits than its factorization.

28151726952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172988632 (or 1172988628 counting only the distinct ones).

The product of its digits is 604800, while the sum is 48.

The spelling of 28151726952 in words is "twenty-eight billion, one hundred fifty-one million, seven hundred twenty-six thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 1172988623 2345977246 3518965869 4691954492 7037931738 9383908984 14075863476 28151726952