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30413785 = 553114769
BaseRepresentation
bin111010000000…
…1001111011001
32010020011212111
41310001033121
530241220120
63003512321
7516340633
oct164011731
963204774
1030413785
1116193366
12a2286a1
1363bb42c
144079a53
152a0b75a
hex1d013d9

30413785 has 8 divisors (see below), whose sum is σ = 37185480. Its totient is φ = 23871744.

The previous prime is 30413777. The next prime is 30413809. The reversal of 30413785 is 58731403.

It can be written as a sum of positive squares in 4 ways, for example, as 2143296 + 28270489 = 1464^2 + 5317^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30413785 - 23 = 30413777 is a prime.

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, 57120 + ... + 57649.

It is an arithmetic number, because the mean of its divisors is an integer number (4648185).

Almost surely, 230413785 is an apocalyptic number.

It is an amenable number.

30413785 is a deficient number, since it is larger than the sum of its proper divisors (6771695).

30413785 is a wasteful number, since it uses less digits than its factorization.

30413785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114827.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 30413785 is about 5514.8694454175. The cubic root of 30413785 is about 312.1453170590.

It can be divided in two parts, 304137 and 85, that multiplied together give a triangular number (25851645 = T7190).

The spelling of 30413785 in words is "thirty million, four hundred thirteen thousand, seven hundred eighty-five".

Divisors: 1 5 53 265 114769 573845 6082757 30413785