Search a number
-
+
70774404 = 223231491721
BaseRepresentation
bin1000011011111…
…10111010000100
311221011201020020
410031332322010
5121104240104
611004535140
71516400241
oct415767204
9157151206
1070774404
1136a4a948
121b8514b0
131188015c
1495845c8
1563302d9
hex437ee84

70774404 has 48 divisors (see below), whose sum is σ = 173577600. Its totient is φ = 22401280.

The previous prime is 70774399. The next prime is 70774409. The reversal of 70774404 is 40447707.

It is an interprime number because it is at equal distance from previous prime (70774399) and next prime (70774409).

It is not an unprimeable number, because it can be changed into a prime (70774409) 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, 40264 + ... + 41984.

It is an arithmetic number, because the mean of its divisors is an integer number (3616200).

Almost surely, 270774404 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 70774404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86788800).

70774404 is an abundant number, since it is smaller than the sum of its proper divisors (102803196).

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

70774404 is a wasteful number, since it uses less digits than its factorization.

70774404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900 (or 1898 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 33.

The square root of 70774404 is about 8412.7524627793. The cubic root of 70774404 is about 413.6427406393.

Multiplying 70774404 by its sum of digits (33), we get a palindrome (2335555332).

Adding to 70774404 its reverse (40447707), we get a palindrome (111222111).

The spelling of 70774404 in words is "seventy million, seven hundred seventy-four thousand, four hundred four".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 149 276 298 447 596 894 1721 1788 3427 3442 5163 6854 6884 10281 10326 13708 20562 20652 39583 41124 79166 118749 158332 237498 256429 474996 512858 769287 1025716 1538574 3077148 5897867 11795734 17693601 23591468 35387202 70774404