Search a number
-
+
145320246501 = 3236731434187
BaseRepresentation
bin1000011101010111000…
…0101111110011100101
3111220002121200101220220
42013111300233303211
54340103440342001
6150431553114553
713333112500023
oct2072560576345
9456077611826
10145320246501
11566a2544081
12241b7558a59
131091bb8a051
147068053713
153ba7d35c36
hex21d5c2fce5

145320246501 has 16 divisors (see below), whose sum is σ = 205202379264. Its totient is φ = 91284876144.

The previous prime is 145320246499. The next prime is 145320246509. The reversal of 145320246501 is 105642023541.

It is not a de Polignac number, because 145320246501 - 21 = 145320246499 is a prime.

It is a super-2 number, since 2×1453202465012 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145320246509) 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, 15712471 + ... + 15721716.

It is an arithmetic number, because the mean of its divisors is an integer number (12825148704).

Almost surely, 2145320246501 is an apocalyptic number.

It is an amenable number.

145320246501 is a deficient number, since it is larger than the sum of its proper divisors (59882132763).

145320246501 is a wasteful number, since it uses less digits than its factorization.

145320246501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31434280.

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 145320246501 in words is "one hundred forty-five billion, three hundred twenty million, two hundred forty-six thousand, five hundred one".

Divisors: 1 3 23 67 69 201 1541 4623 31434187 94302561 722986301 2106090529 2168958903 6318271587 48440082167 145320246501