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469968128 = 2871715427
BaseRepresentation
bin11100000000110…
…010010100000000
31012202022212001222
4130000302110000
51430302440003
6114345014212
714434443320
oct3400622400
91182285058
10469968128
11221315013
12111484368
137649b766
14465b9280
152b3d4c38
hex1c032500

469968128 has 72 divisors (see below), whose sum is σ = 1135253952. Its totient is φ = 189554688.

The previous prime is 469968127. The next prime is 469968137. The reversal of 469968128 is 821869964.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 469968128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (469968127) 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, 22751 + ... + 38177.

It is an arithmetic number, because the mean of its divisors is an integer number (15767416).

Almost surely, 2469968128 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 469968128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (567626976).

469968128 is an abundant number, since it is smaller than the sum of its proper divisors (665285824).

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

469968128 is a wasteful number, since it uses less digits than its factorization.

469968128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15467 (or 15453 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 53.

The square root of 469968128 is about 21678.7483033500. The cubic root of 469968128 is about 777.4804345735.

It can be divided in two parts, 4699 and 68128, that added together give a palindrome (72827).

The spelling of 469968128 in words is "four hundred sixty-nine million, nine hundred sixty-eight thousand, one hundred twenty-eight".

Divisors: 1 2 4 7 8 14 16 17 28 32 34 56 64 68 112 119 128 136 224 238 256 272 448 476 544 896 952 1088 1792 1904 2176 3808 4352 7616 15232 15427 30464 30854 61708 107989 123416 215978 246832 262259 431956 493664 524518 863912 987328 1049036 1727824 1835813 1974656 2098072 3455648 3671626 3949312 4196144 6911296 7343252 8392288 13822592 14686504 16784576 27645184 29373008 33569152 58746016 67138304 117492032 234984064 469968128