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30652490 = 25113189101
BaseRepresentation
bin111010011101…
…1100001001010
32010200022022102
41310323201022
530321334430
63012553402
7521353601
oct164734112
963608272
1030652490
1116336740
12a322862
136472c8b
1440dca38
152a57345
hex1d3b84a

30652490 has 64 divisors (see below), whose sum is σ = 63452160. Its totient is φ = 10560000.

The previous prime is 30652487. The next prime is 30652511. The reversal of 30652490 is 9425603.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 303440 + ... + 303540.

It is an arithmetic number, because the mean of its divisors is an integer number (991440).

Almost surely, 230652490 is an apocalyptic number.

30652490 is an abundant number, since it is smaller than the sum of its proper divisors (32799670).

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

30652490 is a wasteful number, since it uses less digits than its factorization.

30652490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 30652490 is about 5536.4690913975. The cubic root of 30652490 is about 312.9598222713.

It can be divided in two parts, 3065 and 2490, that added together give a palindrome (5555).

The spelling of 30652490 in words is "thirty million, six hundred fifty-two thousand, four hundred ninety".

Divisors: 1 2 5 10 11 22 31 55 62 89 101 110 155 178 202 310 341 445 505 682 890 979 1010 1111 1705 1958 2222 2759 3131 3410 4895 5518 5555 6262 8989 9790 11110 13795 15655 17978 27590 30349 31310 34441 44945 60698 68882 89890 98879 151745 172205 197758 278659 303490 344410 494395 557318 988790 1393295 2786590 3065249 6130498 15326245 30652490