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428416 = 273347
BaseRepresentation
bin1101000100110000000
3210202200021
41220212000
5102202131
613103224
73433012
oct1504600
9722607
10428416
1127296a
12187b14
13120001
14b21b2
1586e11
hex68980

428416 has 16 divisors (see below), whose sum is σ = 853740. Its totient is φ = 214144.

The previous prime is 428411. The next prime is 428429. The reversal of 428416 is 614824.

428416 = T9 + T10 + ... + T136.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1546 + ... + 1801.

2428416 is an apocalyptic number.

It is an amenable number.

428416 is a deficient number, since it is larger than the sum of its proper divisors (425324).

428416 is an equidigital number, since it uses as much as digits as its factorization.

428416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361 (or 3349 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The square root of 428416 is about 654.5349494106. The cubic root of 428416 is about 75.3856286240.

The spelling of 428416 in words is "four hundred twenty-eight thousand, four hundred sixteen".

Divisors: 1 2 4 8 16 32 64 128 3347 6694 13388 26776 53552 107104 214208 428416