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130023202 = 265011601
BaseRepresentation
bin1111011111111…
…11111100100010
3100001122212022011
413233333330202
5231241220302
620522503134
73136115251
oct757777442
9301585264
10130023202
11674383a1
1237664aaa
1320c2620a
14133a8798
15b6355d7
hex7bfff22

130023202 has 4 divisors (see below), whose sum is σ = 195034806. Its totient is φ = 65011600.

The previous prime is 130023199. The next prime is 130023203. The reversal of 130023202 is 202320031.

It is a happy number.

130023202 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 202320031 = 434705117.

It can be written as a sum of positive squares in only one way, i.e., 129982801 + 40401 = 11401^2 + 201^2 .

It is not an unprimeable number, because it can be changed into a prime (130023203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32505799 + ... + 32505802.

Almost surely, 2130023202 is an apocalyptic number.

130023202 is a deficient number, since it is larger than the sum of its proper divisors (65011604).

130023202 is an equidigital number, since it uses as much as digits as its factorization.

130023202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65011603.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 130023202 is about 11402.7716806047. The cubic root of 130023202 is about 506.6098377128.

Adding to 130023202 its reverse (202320031), we get a palindrome (332343233).

The spelling of 130023202 in words is "one hundred thirty million, twenty-three thousand, two hundred two".

Divisors: 1 2 65011601 130023202