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272223868 = 227192392141
BaseRepresentation
bin10000001110011…
…100111001111100
3200222020101221111
4100032130321330
51024142130433
643002411404
76513602410
oct2016347174
9628211844
10272223868
1112a732904
1277200b64
1344524117
1428222d40
1518d73dcd
hex1039ce7c

272223868 has 48 divisors (see below), whose sum is σ = 575769600. Its totient is φ = 110013120.

The previous prime is 272223851. The next prime is 272223877. The reversal of 272223868 is 868322272.

It is a self number, because there is not a number n which added to its sum of digits gives 272223868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126078 + ... + 128218.

It is an arithmetic number, because the mean of its divisors is an integer number (11995200).

Almost surely, 2272223868 is an apocalyptic number.

272223868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 272223868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287884800).

272223868 is an abundant number, since it is smaller than the sum of its proper divisors (303545732).

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

272223868 is a wasteful number, since it uses less digits than its factorization.

272223868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410 (or 2408 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 272223868 is about 16499.2081022090. The cubic root of 272223868 is about 648.1000677398.

The spelling of 272223868 in words is "two hundred seventy-two million, two hundred twenty-three thousand, eight hundred sixty-eight".

Divisors: 1 2 4 7 14 19 28 38 76 133 239 266 478 532 956 1673 2141 3346 4282 4541 6692 8564 9082 14987 18164 29974 31787 40679 59948 63574 81358 127148 162716 284753 511699 569506 1023398 1139012 2046796 3581893 7163786 9722281 14327572 19444562 38889124 68055967 136111934 272223868