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30622426 = 215311213
BaseRepresentation
bin111010011010…
…0001011011010
32010121210001221
41310310023122
530314404201
63012202254
7521200132
oct164641332
963553057
1030622426
111631609a
12a30938a
1364623a3
1440d1ac2
152a4d4a1
hex1d342da

30622426 has 4 divisors (see below), whose sum is σ = 45933642. Its totient is φ = 15311212.

The previous prime is 30622411. The next prime is 30622441. The reversal of 30622426 is 62422603.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62422603 = 169336871.

It is an interprime number because it is at equal distance from previous prime (30622411) and next prime (30622441).

It can be written as a sum of positive squares in only one way, i.e., 27196225 + 3426201 = 5215^2 + 1851^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30622426.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7655605 + ... + 7655608.

Almost surely, 230622426 is an apocalyptic number.

30622426 is a deficient number, since it is larger than the sum of its proper divisors (15311216).

30622426 is a wasteful number, since it uses less digits than its factorization.

30622426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15311215.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 30622426 is about 5533.7533374736. The cubic root of 30622426 is about 312.8574716755.

The spelling of 30622426 in words is "thirty million, six hundred twenty-two thousand, four hundred twenty-six".

Divisors: 1 2 15311213 30622426