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30460213 = 723753317
BaseRepresentation
bin111010000110…
…0100100110101
32010022112120001
41310030210311
530244211323
63004511301
7516623200
oct164144465
963275501
1030460213
1116215233
12a24b531
1364065c4
14408c937
152a1a3ad
hex1d0c935

30460213 has 24 divisors (see below), whose sum is σ = 37194552. Its totient is φ = 24845184.

The previous prime is 30460193. The next prime is 30460217. The reversal of 30460213 is 31206403.

It can be written as a sum of positive squares in 4 ways, for example, as 6036849 + 24423364 = 2457^2 + 4942^2 .

It is not a de Polignac number, because 30460213 - 25 = 30460181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30460217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95931 + ... + 96247.

It is an arithmetic number, because the mean of its divisors is an integer number (1549773).

Almost surely, 230460213 is an apocalyptic number.

It is an amenable number.

30460213 is a deficient number, since it is larger than the sum of its proper divisors (6734339).

30460213 is a wasteful number, since it uses less digits than its factorization.

30460213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 30460213 is about 5519.0771873566. The cubic root of 30460213 is about 312.3040708900.

Adding to 30460213 its reverse (31206403), we get a palindrome (61666616).

The spelling of 30460213 in words is "thirty million, four hundred sixty thousand, two hundred thirteen".

Divisors: 1 7 37 49 53 259 317 371 1813 1961 2219 2597 11729 13727 15533 16801 82103 96089 117607 574721 621637 823249 4351459 30460213