Search a number
-
+
3145020101 = 29293370133
BaseRepresentation
bin1011101101110101…
…0011001011000101
322010011220120111222
42323131103023011
522420111120401
61240024410125
7140636141546
oct27335231305
98104816458
103145020101
111374311173
12739316945
133b175b852
1421b9964cd
1513618cc1b
hexbb7532c5

3145020101 has 8 divisors (see below), whose sum is σ = 3264581880. Its totient is φ = 3026199232.

The previous prime is 3145020089. The next prime is 3145020107. The reversal of 3145020101 is 1010205413.

It can be written as a sum of positive squares in 4 ways, for example, as 1243972900 + 1901047201 = 35270^2 + 43601^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3145020101 - 26 = 3145020037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3145020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145020107) 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, 176570 + ... + 193563.

It is an arithmetic number, because the mean of its divisors is an integer number (408072735).

Almost surely, 23145020101 is an apocalyptic number.

It is an amenable number.

3145020101 is a deficient number, since it is larger than the sum of its proper divisors (119561779).

3145020101 is a wasteful number, since it uses less digits than its factorization.

3145020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370455.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 3145020101 is about 56080.4787871858. The cubic root of 3145020101 is about 1465.1243125456.

Adding to 3145020101 its reverse (1010205413), we get a palindrome (4155225514).

The spelling of 3145020101 in words is "three billion, one hundred forty-five million, twenty thousand, one hundred one".

Divisors: 1 29 293 8497 370133 10733857 108448969 3145020101