Search a number
-
+
30492437 = 315367277
BaseRepresentation
bin111010001010…
…0011100010101
32010101011202112
41310110130111
530301224222
63005320405
7520116143
oct164243425
963334675
1030492437
1116237468
12a266105
136418181
14409a593
152a24be2
hex1d14715

30492437 has 16 divisors (see below), whose sum is σ = 32666112. Its totient is φ = 28416960.

The previous prime is 30492431. The next prime is 30492443. The reversal of 30492437 is 73429403.

It is an interprime number because it is at equal distance from previous prime (30492431) and next prime (30492443).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30492437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30492431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109943 + ... + 110219.

It is an arithmetic number, because the mean of its divisors is an integer number (2041632).

Almost surely, 230492437 is an apocalyptic number.

It is an amenable number.

30492437 is a deficient number, since it is larger than the sum of its proper divisors (2173675).

30492437 is a wasteful number, since it uses less digits than its factorization.

30492437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 30492437 is about 5521.9957442939. The cubic root of 30492437 is about 312.4141613837.

The spelling of 30492437 in words is "thirty million, four hundred ninety-two thousand, four hundred thirty-seven".

Divisors: 1 31 53 67 277 1643 2077 3551 8587 14681 18559 110081 455111 575329 983627 30492437