Search a number
-
+
30021211310 = 255973697033
BaseRepresentation
bin11011111101011001…
…110101010010101110
32212111020012112211012
4123331121311102232
5442440412230220
621442550425222
72111645041256
oct337531652256
985436175735
1030021211310
1111806211442
12599a062212
132aa58b097c
14164b1aa966
15baa918ac5
hex6fd6754ae

30021211310 has 32 divisors (see below), whose sum is σ = 55706957280. Its totient is φ = 11643222528.

The previous prime is 30021211247. The next prime is 30021211343. The reversal of 30021211310 is 1311212003.

It is a super-2 number, since 2×300212113102 (a number of 22 digits) 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 15 ways as a sum of consecutive naturals, for example, 305447 + ... + 391586.

It is an arithmetic number, because the mean of its divisors is an integer number (1740842415).

Almost surely, 230021211310 is an apocalyptic number.

30021211310 is a deficient number, since it is larger than the sum of its proper divisors (25685745970).

30021211310 is a wasteful number, since it uses less digits than its factorization.

30021211310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697172.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 30021211310 its reverse (1311212003), we get a palindrome (31332423313).

The spelling of 30021211310 in words is "thirty billion, twenty-one million, two hundred eleven thousand, three hundred ten".

Divisors: 1 2 5 10 59 73 118 146 295 365 590 730 4307 8614 21535 43070 697033 1394066 3485165 6970330 41124947 50883409 82249894 101766818 205624735 254417045 411249470 508834090 3002121131 6004242262 15010605655 30021211310