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30199401 = 323355489
BaseRepresentation
bin111001100110…
…0111001101001
32002211021210100
41303030321221
530212340101
62555140013
7514455621
oct163147151
962737710
1030199401
1116057291
12a144609
13634498b
144021881
1529b7e86
hex1ccce69

30199401 has 6 divisors (see below), whose sum is σ = 43621370. Its totient is φ = 20132928.

The previous prime is 30199397. The next prime is 30199423. The reversal of 30199401 is 10499103.

It can be written as a sum of positive squares in only one way, i.e., 28611801 + 1587600 = 5349^2 + 1260^2 .

It is not a de Polignac number, because 30199401 - 22 = 30199397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30199441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1677736 + ... + 1677753.

Almost surely, 230199401 is an apocalyptic number.

It is an amenable number.

30199401 is a deficient number, since it is larger than the sum of its proper divisors (13421969).

30199401 is a wasteful number, since it uses less digits than its factorization.

30199401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3355495 (or 3355492 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 30199401 is about 5495.3981657383. The cubic root of 30199401 is about 311.4101590210.

The spelling of 30199401 in words is "thirty million, one hundred ninety-nine thousand, four hundred one".

Divisors: 1 3 9 3355489 10066467 30199401