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30148023 = 329346529
BaseRepresentation
bin111001100000…
…0010110110111
32002201200022110
41303000112313
530204214043
62554102103
7514153053
oct163002667
962650273
1030148023
1116021724
12a11a933
136327489
14400ac63
1529a7b33
hex1cc05b7

30148023 has 8 divisors (see below), whose sum is σ = 41583600. Its totient is φ = 19405568.

The previous prime is 30147989. The next prime is 30148067. The reversal of 30148023 is 32084103.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30148023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30148093) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 173178 + ... + 173351.

It is an arithmetic number, because the mean of its divisors is an integer number (5197950).

Almost surely, 230148023 is an apocalyptic number.

30148023 is a deficient number, since it is larger than the sum of its proper divisors (11435577).

30148023 is a wasteful number, since it uses less digits than its factorization.

30148023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346561.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 30148023 is about 5490.7215372845. The cubic root of 30148023 is about 311.2334589039.

The spelling of 30148023 in words is "thirty million, one hundred forty-eight thousand, twenty-three".

Divisors: 1 3 29 87 346529 1039587 10049341 30148023