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30151097 = 291377589
BaseRepresentation
bin111001100000…
…1000110111001
32002201211112022
41303001012321
530204313342
62554124225
7514165034
oct163010671
962654468
1030151097
1116023a69
12a120675
1363289b2
14400c01b
1529a89d2
hex1cc11b9

30151097 has 8 divisors (see below), whose sum is σ = 31422600. Its totient is φ = 28895104.

The previous prime is 30151067. The next prime is 30151123. The reversal of 30151097 is 79015103.

It can be written as a sum of positive squares in 4 ways, for example, as 383161 + 29767936 = 619^2 + 5456^2 .

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-30151097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30151007) 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, 179 + ... + 7767.

It is an arithmetic number, because the mean of its divisors is an integer number (3927825).

Almost surely, 230151097 is an apocalyptic number.

It is an amenable number.

30151097 is a deficient number, since it is larger than the sum of its proper divisors (1271503).

30151097 is a wasteful number, since it uses less digits than its factorization.

30151097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7755.

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 30151097 is about 5491.0014569293. The cubic root of 30151097 is about 311.2440367024.

The spelling of 30151097 in words is "thirty million, one hundred fifty-one thousand, ninety-seven".

Divisors: 1 29 137 3973 7589 220081 1039693 30151097