Search a number
-
+
13121010332 = 2219731662571
BaseRepresentation
bin11000011100001001…
…01011101010011100
31020212102111101102122
430032010223222130
5203332434312312
610005552442112
7643102514303
oct141604535234
936772441378
1013121010332
1156235172a1
122662249338
131311490751
148c686943a
1551bda6b72
hex30e12ba9c

13121010332 has 12 divisors (see below), whose sum is σ = 22973419896. Its totient is φ = 6557176080.

The previous prime is 13121010319. The next prime is 13121010361. The reversal of 13121010332 is 23301012131.

It is a self number, because there is not a number n which added to its sum of digits gives 13121010332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 823394 + ... + 839177.

It is an arithmetic number, because the mean of its divisors is an integer number (1914451658).

Almost surely, 213121010332 is an apocalyptic number.

It is an amenable number.

13121010332 is a deficient number, since it is larger than the sum of its proper divisors (9852409564).

13121010332 is a wasteful number, since it uses less digits than its factorization.

13121010332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664548 (or 1664546 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13121010332 its reverse (23301012131), we get a palindrome (36422022463).

The spelling of 13121010332 in words is "thirteen billion, one hundred twenty-one million, ten thousand, three hundred thirty-two".

Divisors: 1 2 4 1973 3946 7892 1662571 3325142 6650284 3280252583 6560505166 13121010332