Search a number
-
+
2152431472 = 241779100169
BaseRepresentation
bin1000000001001011…
…0111111101110000
312120000011211220011
42000102313331300
513402010301342
6553330024304
7104224236262
oct20022677560
95500154804
102152431472
11a04a9a694
12500a18094
13283c17bb9
14165c17b32
15c8e72717
hex804b7f70

2152431472 has 40 divisors (see below), whose sum is σ = 4471588800. Its totient is φ = 1000077312.

The previous prime is 2152431461. The next prime is 2152431493. The reversal of 2152431472 is 2741342512.

It is a happy number.

It is a super-2 number, since 2×21524314722 = 9265922483312173568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28597 + ... + 71572.

It is an arithmetic number, because the mean of its divisors is an integer number (111789720).

Almost surely, 22152431472 is an apocalyptic number.

It is an amenable number.

2152431472 is an abundant number, since it is smaller than the sum of its proper divisors (2319157328).

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

2152431472 is a wasteful number, since it uses less digits than its factorization.

2152431472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100273 (or 100267 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 2152431472 is about 46394.3043055934. The cubic root of 2152431472 is about 1291.1492416631.

Adding to 2152431472 its reverse (2741342512), we get a palindrome (4893773984).

The spelling of 2152431472 in words is "two billion, one hundred fifty-two million, four hundred thirty-one thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 17 34 68 79 136 158 272 316 632 1264 1343 2686 5372 10744 21488 100169 200338 400676 801352 1602704 1702873 3405746 6811492 7913351 13622984 15826702 27245968 31653404 63306808 126613616 134526967 269053934 538107868 1076215736 2152431472