Search a number
-
+
13122401430 = 235437413381
BaseRepresentation
bin11000011100010011…
…11111010010010110
31020212112010001122210
430032021333102112
5203333313321210
610010042334250
7643120400055
oct141611772226
936775101583
1013122401430
115624287466
1226627ba386
131311859998
148c6b0c39c
1551c07de20
hex30e27f496

13122401430 has 16 divisors (see below), whose sum is σ = 31493763504. Its totient is φ = 3499307040.

The previous prime is 13122401407. The next prime is 13122401431. The reversal of 13122401430 is 3410422131.

It is a junction number, because it is equal to n+sod(n) for n = 13122401397 and 13122401406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122401431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218706661 + ... + 218706720.

It is an arithmetic number, because the mean of its divisors is an integer number (1968360219).

Almost surely, 213122401430 is an apocalyptic number.

13122401430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13122401430 is an abundant number, since it is smaller than the sum of its proper divisors (18371362074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13122401430 is a wasteful number, since it uses less digits than its factorization.

13122401430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437413391.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 13122401430 its reverse (3410422131), we get a palindrome (16532823561).

The spelling of 13122401430 in words is "thirteen billion, one hundred twenty-two million, four hundred one thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 437413381 874826762 1312240143 2187066905 2624480286 4374133810 6561200715 13122401430