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14620431 = 374714813
BaseRepresentation
bin110111110001…
…011100001111
31000111210110110
4313301130033
512220323211
61241211103
7235162110
oct67613417
930453413
1014620431
118286601
124a90a93
13304b957
141d28207
15143bea6
hexdf170f

14620431 has 16 divisors (see below), whose sum is σ = 22754304. Its totient is φ = 8176224.

The previous prime is 14620429. The next prime is 14620447. The reversal of 14620431 is 13402641.

It is not a de Polignac number, because 14620431 - 21 = 14620429 is a prime.

It is a super-2 number, since 2×146204312 = 427514005251522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 14620398 and 14620407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14620531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6420 + ... + 8393.

It is an arithmetic number, because the mean of its divisors is an integer number (1422144).

Almost surely, 214620431 is an apocalyptic number.

14620431 is a deficient number, since it is larger than the sum of its proper divisors (8133873).

14620431 is a wasteful number, since it uses less digits than its factorization.

14620431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14870.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 14620431 is about 3823.6672187836. The cubic root of 14620431 is about 244.5231931695.

It can be divided in two parts, 14620 and 431, that added together give a palindrome (15051).

The spelling of 14620431 in words is "fourteen million, six hundred twenty thousand, four hundred thirty-one".

Divisors: 1 3 7 21 47 141 329 987 14813 44439 103691 311073 696211 2088633 4873477 14620431