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30113949 = 341923957
BaseRepresentation
bin111001011100…
…0000010011101
32002122221120110
41302320002131
530202121244
62553240233
7513651525
oct162700235
962587513
1030113949
1115aa9068
12a103079
136314b08
143ddc685
15299c9b9
hex1cb809d

30113949 has 8 divisors (see below), whose sum is σ = 40249440. Its totient is φ = 20027216.

The previous prime is 30113947. The next prime is 30113957. The reversal of 30113949 is 94931103.

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 30113949 - 21 = 30113947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30113947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10722 + ... + 13235.

It is an arithmetic number, because the mean of its divisors is an integer number (5031180).

Almost surely, 230113949 is an apocalyptic number.

It is an amenable number.

30113949 is a deficient number, since it is larger than the sum of its proper divisors (10135491).

30113949 is a wasteful number, since it uses less digits than its factorization.

30113949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24379.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 30113949 is about 5487.6177891686. The cubic root of 30113949 is about 311.1161602591.

The spelling of 30113949 in words is "thirty million, one hundred thirteen thousand, nine hundred forty-nine".

Divisors: 1 3 419 1257 23957 71871 10037983 30113949