Search a number
-
+
31003022132 = 22231378924439
BaseRepresentation
bin11100110111111011…
…001001001100110100
32222000122122201001222
4130313323021030310
51001443233202012
622124222205512
72145166224425
oct346773111464
988018581058
1031003022132
111216a441445
126012a23898
132c0111ca14
14170174164c
15c16c05972
hex737ec9334

31003022132 has 24 divisors (see below), whose sum is σ = 56620636800. Its totient is φ = 14825850336.

The previous prime is 31003022131. The next prime is 31003022137. The reversal of 31003022132 is 23122030013.

It is a super-2 number, since 2×310030221322 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31003022132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31003022131) 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, 1256369 + ... + 1280807.

It is an arithmetic number, because the mean of its divisors is an integer number (2359193200).

Almost surely, 231003022132 is an apocalyptic number.

It is an amenable number.

31003022132 is a deficient number, since it is larger than the sum of its proper divisors (25617614668).

31003022132 is a wasteful number, since it uses less digits than its factorization.

31003022132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38255 (or 38253 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 31003022132 its reverse (23122030013), we get a palindrome (54125052145).

The spelling of 31003022132 in words is "thirty-one billion, three million, twenty-two thousand, one hundred thirty-two".

Divisors: 1 2 4 23 46 92 13789 24439 27578 48878 55156 97756 317147 562097 634294 1124194 1268588 2248388 336989371 673978742 1347957484 7750755533 15501511066 31003022132