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212013237708 = 223217351198669
BaseRepresentation
bin1100010101110011111…
…0010100010111001100
3202021020120022101120100
43011130332110113030
511433200342101313
6241221511251100
721213612533436
oct3053476242714
9667216271510
10212013237708
1181a06a44528
123510a979a90
1316cba13a15c
14a393787656
1557ace5c173
hex315cf945cc

212013237708 has 72 divisors (see below), whose sum is σ = 567614567520. Its totient is φ = 66494338560.

The previous prime is 212013237707. The next prime is 212013237719. The reversal of 212013237708 is 807732310212.

It is a super-2 number, since 2×2120132377082 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (212013237701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2099398 + ... + 2198066.

It is an arithmetic number, because the mean of its divisors is an integer number (7883535660).

Almost surely, 2212013237708 is an apocalyptic number.

It is an amenable number.

212013237708 is an abundant number, since it is smaller than the sum of its proper divisors (355601329812).

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

212013237708 is a wasteful number, since it uses less digits than its factorization.

212013237708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102207 (or 102202 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The spelling of 212013237708 in words is "two hundred twelve billion, thirteen million, two hundred thirty-seven thousand, seven hundred eight".

Divisors: 1 2 3 4 6 9 12 17 18 34 36 51 68 102 153 204 306 612 3511 7022 10533 14044 21066 31599 42132 59687 63198 98669 119374 126396 179061 197338 238748 296007 358122 394676 537183 592014 716244 888021 1074366 1184028 1677373 1776042 2148732 3354746 3552084 5032119 6709492 10064238 15096357 20128476 30192714 60385428 346426859 692853718 1039280577 1385707436 2078561154 3117841731 4157122308 5889256603 6235683462 11778513206 12471366924 17667769809 23557026412 35335539618 53003309427 70671079236 106006618854 212013237708