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4272787668 = 2237115113319
BaseRepresentation
bin1111111010101101…
…1001000011010100
3102000210000002210010
43332223121003110
532222313201133
61543552400220
7210612044622
oct37653310324
912023002703
104272787668
1118a2971686
129b2b46070
135312b2336
142c7682512
151a01ab263
hexfead90d4

4272787668 has 48 divisors (see below), whose sum is σ = 10119997440. Its totient is φ = 1402850400.

The previous prime is 4272787663. The next prime is 4272787669. The reversal of 4272787668 is 8667872724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4272787663) 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, 1285713 + ... + 1289031.

It is an arithmetic number, because the mean of its divisors is an integer number (210833280).

Almost surely, 24272787668 is an apocalyptic number.

It is an amenable number.

4272787668 is an abundant number, since it is smaller than the sum of its proper divisors (5847209772).

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

4272787668 is a wasteful number, since it uses less digits than its factorization.

4272787668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4908 (or 4906 counting only the distinct ones).

The product of its digits is 12644352, while the sum is 57.

The square root of 4272787668 is about 65366.5638380969. The cubic root of 4272787668 is about 1622.6957691861.

The spelling of 4272787668 in words is "four billion, two hundred seventy-two million, seven hundred eighty-seven thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 12 71 142 213 284 426 852 1511 3022 3319 4533 6044 6638 9066 9957 13276 18132 19914 39828 107281 214562 235649 321843 429124 471298 643686 706947 942596 1287372 1413894 2827788 5015009 10030018 15045027 20060036 30090054 60180108 356065639 712131278 1068196917 1424262556 2136393834 4272787668