Search a number
-
+
3129890454 = 232173882803
BaseRepresentation
bin1011101010001110…
…0101011010010110
322002010102220112200
42322203211122112
522402222443304
61234324225330
7140363426025
oct27243453226
98063386480
103129890454
111366818029
1273423b246
133ab5921b2
142199788bc
15134b9ee39
hexba8e5696

3129890454 has 12 divisors (see below), whose sum is σ = 6781429356. Its totient is φ = 1043296812.

The previous prime is 3129890447. The next prime is 3129890459. The reversal of 3129890454 is 4540989213.

It is a super-2 number, since 2×31298904542 = 19592428508080652232, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3129890459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 86941384 + ... + 86941419.

It is an arithmetic number, because the mean of its divisors is an integer number (565119113).

Almost surely, 23129890454 is an apocalyptic number.

3129890454 is an abundant number, since it is smaller than the sum of its proper divisors (3651538902).

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

3129890454 is a wasteful number, since it uses less digits than its factorization.

3129890454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173882811 (or 173882808 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 3129890454 is about 55945.4238879285. The cubic root of 3129890454 is about 1462.7711262407.

The spelling of 3129890454 in words is "three billion, one hundred twenty-nine million, eight hundred ninety thousand, four hundred fifty-four".

Divisors: 1 2 3 6 9 18 173882803 347765606 521648409 1043296818 1564945227 3129890454