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2131242430 = 25213124243
BaseRepresentation
bin111111100001000…
…0010110110111110
312111112022022222211
41333002002312332
513331044224210
6551251531034
7103546155532
oct17702026676
95445268884
102131242430
119a4037a89
124b58b9a7a
1327c7094c5
1416309dbc2
15c718938a
hex7f082dbe

2131242430 has 8 divisors (see below), whose sum is σ = 3836236392. Its totient is φ = 852496968.

The previous prime is 2131242403. The next prime is 2131242431. The reversal of 2131242430 is 342421312.

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 (2131242431) 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, 106562112 + ... + 106562131.

It is an arithmetic number, because the mean of its divisors is an integer number (479529549).

Almost surely, 22131242430 is an apocalyptic number.

2131242430 is a deficient number, since it is larger than the sum of its proper divisors (1704993962).

2131242430 is a wasteful number, since it uses less digits than its factorization.

2131242430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213124250.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2131242430 is about 46165.3812937790. The cubic root of 2131242430 is about 1286.8984701277.

Adding to 2131242430 its reverse (342421312), we get a palindrome (2473663742).

The spelling of 2131242430 in words is "two billion, one hundred thirty-one million, two hundred forty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 213124243 426248486 1065621215 2131242430