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7144914812 = 2272191939941
BaseRepresentation
bin1101010011101111…
…01011111101111100
3200102221102021112112
412221313223331330
5104113044233222
63140552153152
7342025526300
oct65167537574
920387367475
107144914812
113037133282
1214749987b8
1389b344359
144bacbdd00
152bc3e1be2
hex1a9debf7c

7144914812 has 72 divisors (see below), whose sum is σ = 15391409040. Its totient is φ = 2885621760.

The previous prime is 7144914769. The next prime is 7144914823. The reversal of 7144914812 is 2184194417.

It is a self number, because there is not a number n which added to its sum of digits gives 7144914812.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 713762 + ... + 723702.

It is an arithmetic number, because the mean of its divisors is an integer number (213769570).

Almost surely, 27144914812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7144914812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7695704520).

7144914812 is an abundant number, since it is smaller than the sum of its proper divisors (8246494228).

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

7144914812 is a wasteful number, since it uses less digits than its factorization.

7144914812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10171 (or 10162 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 7144914812 is about 84527.5979310899. The cubic root of 7144914812 is about 1926.0416973497.

The spelling of 7144914812 in words is "seven billion, one hundred forty-four million, nine hundred fourteen thousand, eight hundred twelve".

Divisors: 1 2 4 7 14 19 28 38 49 76 98 133 193 196 266 386 532 772 931 1351 1862 2702 3667 3724 5404 7334 9457 9941 14668 18914 19882 25669 37828 39764 51338 69587 102676 139174 179683 188879 278348 359366 377758 487109 718732 755516 974218 1322153 1918613 1948436 2644306 3837226 5288612 7674452 9255071 13430291 18510142 26860582 36453647 37020284 53721164 72907294 94012037 145814588 188024074 255175529 376048148 510351058 1020702116 1786228703 3572457406 7144914812