Search a number
-
+
1011400345 = 5569355501
BaseRepresentation
bin111100010010001…
…011111010011001
32121111010110110001
4330102023322121
54032404302340
6244205453001
734030522024
oct7422137231
92544113401
101011400345
11479a0005a
12242871161
131316cc257
14984781bb
155dbd429a
hex3c48be99

1011400345 has 8 divisors (see below), whose sum is σ = 1215816840. Its totient is φ = 807696000.

The previous prime is 1011400333. The next prime is 1011400349. The reversal of 1011400345 is 5430041101.

It can be written as a sum of positive squares in 4 ways, for example, as 33212169 + 978188176 = 5763^2 + 31276^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1011400345 - 213 = 1011392153 is a prime.

It is a super-2 number, since 2×10114003452 = 2045861315732238050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1011400349) 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, 174906 + ... + 180595.

It is an arithmetic number, because the mean of its divisors is an integer number (151977105).

Almost surely, 21011400345 is an apocalyptic number.

It is an amenable number.

1011400345 is a deficient number, since it is larger than the sum of its proper divisors (204416495).

1011400345 is an equidigital number, since it uses as much as digits as its factorization.

1011400345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356075.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1011400345 is about 31802.5210478666. The cubic root of 1011400345 is about 1003.7857648983.

Adding to 1011400345 its reverse (5430041101), we get a palindrome (6441441446).

The spelling of 1011400345 in words is "one billion, eleven million, four hundred thousand, three hundred forty-five".

Divisors: 1 5 569 2845 355501 1777505 202280069 1011400345