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30293426 = 215146713
BaseRepresentation
bin111001110001…
…1110110110010
32010000001202202
41303203312302
530223342201
63001143202
7515330012
oct163436662
963001682
1030293426
1116110999
12a18ab02
136378707
144047c42
1529d5c6b
hex1ce3db2

30293426 has 4 divisors (see below), whose sum is σ = 45440142. Its totient is φ = 15146712.

The previous prime is 30293413. The next prime is 30293449. The reversal of 30293426 is 62439203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62439203 = 78537951.

It can be written as a sum of positive squares in only one way, i.e., 23030401 + 7263025 = 4799^2 + 2695^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7573355 + ... + 7573358.

Almost surely, 230293426 is an apocalyptic number.

30293426 is a deficient number, since it is larger than the sum of its proper divisors (15146716).

30293426 is a wasteful number, since it uses less digits than its factorization.

30293426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15146715.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 30293426 is about 5503.9464023553. The cubic root of 30293426 is about 311.7330131599.

The spelling of 30293426 in words is "thirty million, two hundred ninety-three thousand, four hundred twenty-six".

Divisors: 1 2 15146713 30293426