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1020212193 = 372111348533
BaseRepresentation
bin111100110011110…
…011001111100001
32122002201011000210
4330303303033201
54042133242233
6245122404333
734165442400
oct7463631741
92562634023
101020212193
11483979580
122458006a9
13133496070
14996cd637
155e875163
hex3ccf33e1

1020212193 has 48 divisors (see below), whose sum is σ = 1859046336. Its totient is φ = 489202560.

The previous prime is 1020212191. The next prime is 1020212203. The reversal of 1020212193 is 3912120201.

It is not a de Polignac number, because 1020212193 - 21 = 1020212191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1020212191) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3246 + ... + 45287.

It is an arithmetic number, because the mean of its divisors is an integer number (38730132).

Almost surely, 21020212193 is an apocalyptic number.

1020212193 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1020212193 is a deficient number, since it is larger than the sum of its proper divisors (838834143).

1020212193 is a wasteful number, since it uses less digits than its factorization.

1020212193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48574 (or 48567 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1020212193 is about 31940.7606828641. The cubic root of 1020212193 is about 1006.6925080838.

Adding to 1020212193 its reverse (3912120201), we get a palindrome (4932332394).

The spelling of 1020212193 in words is "one billion, twenty million, two hundred twelve thousand, one hundred ninety-three".

Divisors: 1 3 7 11 13 21 33 39 49 77 91 143 147 231 273 429 539 637 1001 1617 1911 3003 7007 21021 48533 145599 339731 533863 630929 1019193 1601589 1892787 2378117 3737041 4416503 6940219 7134351 11211123 13249509 20820657 26159287 30915521 48581533 78477861 92746563 145744599 340070731 1020212193