Search a number
-
+
13542231451 = 7103913031429
BaseRepresentation
bin11001001110010111…
…00000110110011011
31021221210002122011211
430213023200312123
5210213302401301
610115441003551
7656406032230
oct144713406633
937853078154
1013542231451
11581a266a21
12275b3235b7
13137a822208
14926795787
15543d5d051
hex3272e0d9b

13542231451 has 16 divisors (see below), whose sum is σ = 15514470400. Its totient is φ = 11579446368.

The previous prime is 13542231449. The next prime is 13542231463. The reversal of 13542231451 is 15413224531.

It is not a de Polignac number, because 13542231451 - 21 = 13542231449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13542231751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9476005 + ... + 9477433.

It is an arithmetic number, because the mean of its divisors is an integer number (969654400).

Almost surely, 213542231451 is an apocalyptic number.

13542231451 is a deficient number, since it is larger than the sum of its proper divisors (1972238949).

13542231451 is a wasteful number, since it uses less digits than its factorization.

13542231451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3778.

The product of its digits is 14400, while the sum is 31.

Adding to 13542231451 its reverse (15413224531), we get a palindrome (28955455982).

The spelling of 13542231451 in words is "thirteen billion, five hundred forty-two million, two hundred thirty-one thousand, four hundred fifty-one".

Divisors: 1 7 1039 1303 1429 7273 9121 10003 1353817 1484731 1861987 9476719 10393117 13033909 1934604493 13542231451