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16129412 = 2213310181
BaseRepresentation
bin111101100001…
…110110000100
31010100110101122
4331201312010
513112120122
61333413112
7254045345
oct75416604
933313348
1016129412
1191172a2
12549a198
133459740
1421dc0cc
151639142
hexf61d84

16129412 has 12 divisors (see below), whose sum is σ = 30397836. Its totient is φ = 7444320.

The previous prime is 16129411. The next prime is 16129471. The reversal of 16129412 is 21492161.

16129412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2483776 + 13645636 = 1576^2 + 3694^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (16129411) 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, 155039 + ... + 155142.

It is an arithmetic number, because the mean of its divisors is an integer number (2533153).

Almost surely, 216129412 is an apocalyptic number.

It is an amenable number.

16129412 is a deficient number, since it is larger than the sum of its proper divisors (14268424).

16129412 is a wasteful number, since it uses less digits than its factorization.

16129412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310198 (or 310196 counting only the distinct ones).

The product of its digits is 864, while the sum is 26.

The square root of 16129412 is about 4016.1439217239. The cubic root of 16129412 is about 252.6617569548.

It can be divided in two parts, 161294 and 12, that multiplied together give a triangular number (1935528 = T1967).

The spelling of 16129412 in words is "sixteen million, one hundred twenty-nine thousand, four hundred twelve".

Divisors: 1 2 4 13 26 52 310181 620362 1240724 4032353 8064706 16129412