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30069629 = 89337861
BaseRepresentation
bin111001010110…
…1001101111101
32002120200202222
41302231031331
530144212004
62552255125
7513405362
oct162551575
962520688
1030069629
1115a78837
12a0a14a5
1362ca8a5
143dca469
15298e7be
hex1cad37d

30069629 has 4 divisors (see below), whose sum is σ = 30407580. Its totient is φ = 29731680.

The previous prime is 30069623. The next prime is 30069631. The reversal of 30069629 is 92696003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2244004 + 27825625 = 1498^2 + 5275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30069629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30069623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168842 + ... + 169019.

It is an arithmetic number, because the mean of its divisors is an integer number (7601895).

Almost surely, 230069629 is an apocalyptic number.

It is an amenable number.

30069629 is a deficient number, since it is larger than the sum of its proper divisors (337951).

30069629 is an equidigital number, since it uses as much as digits as its factorization.

30069629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337950.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 30069629 is about 5483.5781201693. The cubic root of 30069629 is about 310.9634576227.

The spelling of 30069629 in words is "thirty million, sixty-nine thousand, six hundred twenty-nine".

Divisors: 1 89 337861 30069629