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210031213030 = 25198985314561
BaseRepresentation
bin1100001110011011010…
…1011111100111100110
3202002010102210002211221
43003212311133213212
511420120442304110
6240253105450554
721113524566022
oct3034665374746
9662112702757
10210031213030
118108a165001
1234857040a5a
1316a626177a2
14a24644b382
1556e3e4a7da
hex30e6d5f9e6

210031213030 has 64 divisors (see below), whose sum is σ = 402924715200. Its totient is φ = 78598840320.

The previous prime is 210031212949. The next prime is 210031213043. The reversal of 210031213030 is 30312130012.

It is a super-2 number, since 2×2100312130302 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210031212995 and 210031213013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14416950 + ... + 14431510.

It is an arithmetic number, because the mean of its divisors is an integer number (6295698675).

Almost surely, 2210031213030 is an apocalyptic number.

210031213030 is a deficient number, since it is larger than the sum of its proper divisors (192893502170).

210031213030 is a wasteful number, since it uses less digits than its factorization.

210031213030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15529.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 210031213030 its reverse (30312130012), we get a palindrome (240343343042).

The spelling of 210031213030 in words is "two hundred ten billion, thirty-one million, two hundred thirteen thousand, thirty".

Divisors: 1 2 5 10 19 38 89 95 178 190 445 853 890 1691 1706 3382 4265 8455 8530 14561 16207 16910 29122 32414 72805 75917 81035 145610 151834 162070 276659 379585 553318 759170 1295929 1383295 1442423 2591858 2766590 2884846 6479645 7212115 12420533 12959290 14424230 24622651 24841066 49245302 62102665 123113255 124205330 235990127 246226510 471980254 1105427437 1179950635 2210854874 2359901270 5527137185 11054274370 21003121303 42006242606 105015606515 210031213030