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3145023245 = 571321972699
BaseRepresentation
bin1011101101110101…
…0011111100001101
322010011220201211102
42323131103330031
522420111220440
61240024432445
7140636153660
oct27335237415
98104821742
103145023245
111374313571
12739318725
133b1760100
1421b9976d7
1513618db15
hexbb753f0d

3145023245 has 48 divisors (see below), whose sum is σ = 4695926400. Its totient is φ = 1979857152.

The previous prime is 3145023221. The next prime is 3145023269. The reversal of 3145023245 is 5423205413.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3145023221) and next prime (3145023269).

It is not a de Polignac number, because 3145023245 - 222 = 3140828941 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1163906 + ... + 1166604.

It is an arithmetic number, because the mean of its divisors is an integer number (97831800).

Almost surely, 23145023245 is an apocalyptic number.

3145023245 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3145023245 is a deficient number, since it is larger than the sum of its proper divisors (1550903155).

3145023245 is a wasteful number, since it uses less digits than its factorization.

3145023245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2934 (or 2921 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 3145023245 is about 56080.5068183232. The cubic root of 3145023245 is about 1465.1248007618.

Adding to 3145023245 its reverse (5423205413), we get a palindrome (8568228658).

The spelling of 3145023245 in words is "three billion, one hundred forty-five million, twenty-three thousand, two hundred forty-five".

Divisors: 1 5 7 13 35 65 91 169 197 455 845 985 1183 1379 2561 2699 5915 6895 12805 13495 17927 18893 33293 35087 89635 94465 166465 175435 233051 245609 456131 531703 1165255 1228045 2280655 2658515 3192917 3721921 6912139 15964585 18609605 34560695 48384973 89857807 241924865 449289035 629004649 3145023245