Search a number
-
+
1312210030 = 25236538737
BaseRepresentation
bin100111000110110…
…1011110001101110
310101110011011202111
41032031223301232
510141411210110
6334113114234
744342413135
oct11615536156
93343134674
101312210030
116137878aa
1230755897a
1317bb21751
14c63bc91c
157a302e8a
hex4e36bc6e

1312210030 has 32 divisors (see below), whose sum is σ = 2468729664. Its totient is φ = 501236736.

The previous prime is 1312210027. The next prime is 1312210049. The reversal of 1312210030 is 300122131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145822 + ... + 154558.

It is an arithmetic number, because the mean of its divisors is an integer number (77147802).

Almost surely, 21312210030 is an apocalyptic number.

1312210030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312210030 is a deficient number, since it is larger than the sum of its proper divisors (1156519634).

1312210030 is a wasteful number, since it uses less digits than its factorization.

1312210030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9420.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1312210030 is about 36224.4396782062. The cubic root of 1312210030 is about 1094.7991486102.

Adding to 1312210030 its reverse (300122131), we get a palindrome (1612332161).

The spelling of 1312210030 in words is "one billion, three hundred twelve million, two hundred ten thousand, thirty".

Divisors: 1 2 5 10 23 46 115 230 653 1306 3265 6530 8737 15019 17474 30038 43685 75095 87370 150190 200951 401902 1004755 2009510 5705261 11410522 28526305 57052610 131221003 262442006 656105015 1312210030