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16229947690 = 2511147544979
BaseRepresentation
bin11110001110110000…
…10101100100101010
31112220002111202201201
433013120111210222
5231214331311230
611242252034414
71113123164515
oct170730254452
945802452651
1016229947690
116979422a10
12318b462a0a
1316b85c7758
14add70bd7c
1564ecb85ca
hex3c761592a

16229947690 has 16 divisors (see below), whose sum is σ = 31869715680. Its totient is φ = 5901799120.

The previous prime is 16229947667. The next prime is 16229947693. The reversal of 16229947690 is 9674992261.

16229947690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×162299476902 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is not an unprimeable number, because it can be changed into a prime (16229947693) 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 in 7 ways as a sum of consecutive naturals, for example, 73772380 + ... + 73772599.

It is an arithmetic number, because the mean of its divisors is an integer number (1991857230).

Almost surely, 216229947690 is an apocalyptic number.

16229947690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16229947690 is a deficient number, since it is larger than the sum of its proper divisors (15639767990).

16229947690 is a wasteful number, since it uses less digits than its factorization.

16229947690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147544997.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The spelling of 16229947690 in words is "sixteen billion, two hundred twenty-nine million, nine hundred forty-seven thousand, six hundred ninety".

Divisors: 1 2 5 10 11 22 55 110 147544979 295089958 737724895 1475449790 1622994769 3245989538 8114973845 16229947690