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15434013 = 37734953
BaseRepresentation
bin111010111000…
…000100011101
31002001010111010
4322320010131
512422342023
61310445433
7245121060
oct72700435
932033433
1015434013
118791891
125203879
13327506a
14209a8d7
15154d093
hexeb811d

15434013 has 8 divisors (see below), whose sum is σ = 23518528. Its totient is φ = 8819424.

The previous prime is 15433969. The next prime is 15434021. The reversal of 15434013 is 31043451.

15434013 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15434013 - 26 = 15433949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 734953 = 15434013 / (1 + 5 + 4 + 3 + 4 + 0 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15434093) 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, 367456 + ... + 367497.

It is an arithmetic number, because the mean of its divisors is an integer number (2939816).

Almost surely, 215434013 is an apocalyptic number.

It is an amenable number.

15434013 is a deficient number, since it is larger than the sum of its proper divisors (8084515).

15434013 is an equidigital number, since it uses as much as digits as its factorization.

15434013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734963.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 15434013 is about 3928.6146413208. The cubic root of 15434013 is about 248.9772240905.

Adding to 15434013 its reverse (31043451), we get a palindrome (46477464).

The spelling of 15434013 in words is "fifteen million, four hundred thirty-four thousand, thirteen".

Divisors: 1 3 7 21 734953 2204859 5144671 15434013