Search a number
-
+
1401241270 = 251113979889
BaseRepresentation
bin101001110000101…
…0011111010110110
310121122200102122211
41103201103322312
510332204210040
6351013244034
746503232342
oct12341237266
93548612584
101401241270
11659a67340
1233133361a
131943c4760
14d4156622
158303c8ea
hex53853eb6

1401241270 has 32 divisors (see below), whose sum is σ = 2963187360. Its totient is φ = 470346240.

The previous prime is 1401241229. The next prime is 1401241271. The reversal of 1401241270 is 721421041.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401241271) 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 15 ways as a sum of consecutive naturals, for example, 488515 + ... + 491374.

It is an arithmetic number, because the mean of its divisors is an integer number (92599605).

Almost surely, 21401241270 is an apocalyptic number.

1401241270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1401241270 is an abundant number, since it is smaller than the sum of its proper divisors (1561946090).

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

1401241270 is a wasteful number, since it uses less digits than its factorization.

1401241270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979920.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 1401241270 is about 37433.1573608212. The cubic root of 1401241270 is about 1119.0194622812.

The spelling of 1401241270 in words is "one billion, four hundred one million, two hundred forty-one thousand, two hundred seventy".

Divisors: 1 2 5 10 11 13 22 26 55 65 110 130 143 286 715 1430 979889 1959778 4899445 9798890 10778779 12738557 21557558 25477114 53893895 63692785 107787790 127385570 140124127 280248254 700620635 1401241270