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15240000198 = 237334794521
BaseRepresentation
bin11100011000101111…
…11111001011000110
31110100002202020001210
432030113333023012
5222202420001243
611000130032250
71046442602313
oct161427771306
943302666053
1015240000198
116510645795
122b53a18686
13158b499cc7
14a48059d0a
155e2e20933
hex38c5ff2c6

15240000198 has 16 divisors (see below), whose sum is σ = 30897535536. Its totient is φ = 5010410880.

The previous prime is 15240000197. The next prime is 15240000203. The reversal of 15240000198 is 89100004251.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15240000197) 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, 17396823 + ... + 17397698.

It is an arithmetic number, because the mean of its divisors is an integer number (1931095971).

Almost surely, 215240000198 is an apocalyptic number.

15240000198 is an abundant number, since it is smaller than the sum of its proper divisors (15657535338).

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

15240000198 is a wasteful number, since it uses less digits than its factorization.

15240000198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34794599.

The product of its (nonzero) digits is 2880, while the sum is 30.

The spelling of 15240000198 in words is "fifteen billion, two hundred forty million, one hundred ninety-eight", and thus it is an aban number.

Divisors: 1 2 3 6 73 146 219 438 34794521 69589042 104383563 208767126 2540000033 5080000066 7620000099 15240000198