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30740254 = 225576011
BaseRepresentation
bin111010101000…
…0111100011110
32010211202200221
41311100330132
530332142004
63014511554
7522200506
oct165207436
963752627
1030740254
1116396676
12a3655ba
1364a3bcc
144122a06
152a73354
hex1d50f1e

30740254 has 8 divisors (see below), whose sum is σ = 46136088. Its totient is φ = 15361560.

The previous prime is 30740219. The next prime is 30740257. The reversal of 30740254 is 45204703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30740257) 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, 2109 + ... + 8119.

It is an arithmetic number, because the mean of its divisors is an integer number (5767011).

Almost surely, 230740254 is an apocalyptic number.

30740254 is a deficient number, since it is larger than the sum of its proper divisors (15395834).

30740254 is a wasteful number, since it uses less digits than its factorization.

30740254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8570.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 30740254 is about 5544.3894163379. The cubic root of 30740254 is about 313.2582257984.

Adding to 30740254 its reverse (45204703), we get a palindrome (75944957).

The spelling of 30740254 in words is "thirty million, seven hundred forty thousand, two hundred fifty-four".

Divisors: 1 2 2557 5114 6011 12022 15370127 30740254