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2151232310 = 25215123231
BaseRepresentation
bin1000000000111001…
…0011001100110110
312112220220220221202
42000032103030312
513401203413220
6553244212502
7104211113213
oct20016231466
95486826852
102151232310
11a04350747
1250053a132
132838b8136
141659c4b0a
15c8cd7275
hex80393336

2151232310 has 8 divisors (see below), whose sum is σ = 3872218176. Its totient is φ = 860492920.

The previous prime is 2151232289. The next prime is 2151232313. The reversal of 2151232310 is 132321512.

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

It is a super-2 number, since 2×21512323102 = 9255600903175872200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151232313) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 107561606 + ... + 107561625.

It is an arithmetic number, because the mean of its divisors is an integer number (484027272).

Almost surely, 22151232310 is an apocalyptic number.

2151232310 is a deficient number, since it is larger than the sum of its proper divisors (1720985866).

2151232310 is a wasteful number, since it uses less digits than its factorization.

2151232310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215123238.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2151232310 is about 46381.3789143876. The cubic root of 2151232310 is about 1290.9094222240.

Adding to 2151232310 its reverse (132321512), we get a palindrome (2283553822).

The spelling of 2151232310 in words is "two billion, one hundred fifty-one million, two hundred thirty-two thousand, three hundred ten".

Divisors: 1 2 5 10 215123231 430246462 1075616155 2151232310