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54204213 = 3731531571
BaseRepresentation
bin1100111011000…
…1011100110101
310202222212012110
43032301130311
5102334013323
65213441233
71225504530
oct316613465
9122885173
1054204213
1128662478
12161a0219
13b2cabcb
1472ada17
154b5a793
hex33b1735

54204213 has 32 divisors (see below), whose sum is σ = 86925312. Its totient is φ = 29390400.

The previous prime is 54204193. The next prime is 54204233. The reversal of 54204213 is 31240245.

It is an interprime number because it is at equal distance from previous prime (54204193) and next prime (54204233).

It is not a de Polignac number, because 54204213 - 212 = 54200117 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 54204213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54204233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33718 + ... + 35288.

It is an arithmetic number, because the mean of its divisors is an integer number (2716416).

Almost surely, 254204213 is an apocalyptic number.

54204213 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

54204213 is a deficient number, since it is larger than the sum of its proper divisors (32721099).

54204213 is a wasteful number, since it uses less digits than its factorization.

54204213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 54204213 is about 7362.3510511249. The cubic root of 54204213 is about 378.4521827483.

Adding to 54204213 its reverse (31240245), we get a palindrome (85444458).

The spelling of 54204213 in words is "fifty-four million, two hundred four thousand, two hundred thirteen".

Divisors: 1 3 7 21 31 53 93 159 217 371 651 1113 1571 1643 4713 4929 10997 11501 32991 34503 48701 83263 146103 249789 340907 582841 1022721 1748523 2581153 7743459 18068071 54204213