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420954 = 23174127
BaseRepresentation
bin1100110110001011010
3210101102220
41212301122
5101432304
613004510
73402162
oct1466132
9711386
10420954
112682a6
12183736
131197b1
14ad5a2
1584ad9
hex66c5a

420954 has 16 divisors (see below), whose sum is σ = 891648. Its totient is φ = 132032.

The previous prime is 420941. The next prime is 420967. The reversal of 420954 is 459024.

420954 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (420941) and next prime (420967).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 420954.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1962 + ... + 2165.

It is an arithmetic number, because the mean of its divisors is an integer number (55728).

2420954 is an apocalyptic number.

420954 is an abundant number, since it is smaller than the sum of its proper divisors (470694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420954 is a wasteful number, since it uses less digits than its factorization.

420954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4149.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 420954 is about 648.8096793359. The cubic root of 420954 is about 74.9453824575.

Adding to 420954 its reverse (459024), we get a palindrome (879978).

The spelling of 420954 in words is "four hundred twenty thousand, nine hundred fifty-four".

Divisors: 1 2 3 6 17 34 51 102 4127 8254 12381 24762 70159 140318 210477 420954