Search a number
-
+
101021020212 = 223710311676031
BaseRepresentation
bin101111000010101010…
…0100111000000110100
3100122202022212112200010
41132011110213000310
53123342340121322
6114224115020220
710204252334550
oct1360524470064
9318668775603
10101021020212
113992a806762
12176b389a670
1396ac1c9508
144c648c0860
152963bbe20c
hex1785527034

101021020212 has 48 divisors (see below), whose sum is σ = 272004841472. Its totient is φ = 28582921440.

The previous prime is 101021020211. The next prime is 101021020213. The reversal of 101021020212 is 212020120101.

It is an interprime number because it is at equal distance from previous prime (101021020211) and next prime (101021020213).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101021020211) 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, 5829364 + ... + 5846667.

Almost surely, 2101021020212 is an apocalyptic number.

101021020212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101021020212 is an abundant number, since it is smaller than the sum of its proper divisors (170983821260).

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

101021020212 is a wasteful number, since it uses less digits than its factorization.

101021020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11676148 (or 11676146 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 101021020212 its reverse (212020120101), we get a palindrome (313041140313).

The spelling of 101021020212 in words is "one hundred one billion, twenty-one million, twenty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 103 206 309 412 618 721 1236 1442 2163 2884 4326 8652 11676031 23352062 35028093 46704124 70056186 81732217 140112372 163464434 245196651 326928868 490393302 980786604 1202631193 2405262386 3607893579 4810524772 7215787158 8418418351 14431574316 16836836702 25255255053 33673673404 50510510106 101021020212