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15390013904 = 24961875869
BaseRepresentation
bin11100101010101000…
…01111100111010000
31110201120000201011222
432111110033213100
5223004320421104
611023045224212
71053243650126
oct162524174720
943646021158
1015390013904
116588297261
122b96102068
1315b35a2205
14a5dd49916
156011a41be
hex39550f9d0

15390013904 has 10 divisors (see below), whose sum is σ = 29818151970. Its totient is φ = 7695006944.

The previous prime is 15390013901. The next prime is 15390013907. The reversal of 15390013904 is 40931009351.

15390013904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (15390013901) and next prime (15390013907).

It can be written as a sum of positive squares in only one way, i.e., 9072943504 + 6317070400 = 95252^2 + 79480^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15390013901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480937919 + ... + 480937950.

It is an arithmetic number, because the mean of its divisors is an integer number (2981815197).

Almost surely, 215390013904 is an apocalyptic number.

It is an amenable number.

15390013904 is a deficient number, since it is larger than the sum of its proper divisors (14428138066).

15390013904 is an equidigital number, since it uses as much as digits as its factorization.

15390013904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961875877 (or 961875871 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 35.

The spelling of 15390013904 in words is "fifteen billion, three hundred ninety million, thirteen thousand, nine hundred four".

Divisors: 1 2 4 8 16 961875869 1923751738 3847503476 7695006952 15390013904