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202010211020 = 225312221146701
BaseRepresentation
bin1011110000100010111…
…1110011001011001100
3201022102102211222121102
42330020233303023030
511302204103223040
6232445135522232
720411000314352
oct2741057631314
9638372758542
10202010211020
1178743552522
1233198989378
1316084930157
149ac50777d2
1553c4ba2515
hex2f08bf32cc

202010211020 has 48 divisors (see below), whose sum is σ = 438106158336. Its totient is φ = 78161760000.

The previous prime is 202010210993. The next prime is 202010211023. The reversal of 202010211020 is 20112010202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 202010210992 and 202010211010.

It is not an unprimeable number, because it can be changed into a prime (202010211023) 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, 1303670 + ... + 1450370.

It is an arithmetic number, because the mean of its divisors is an integer number (9127211632).

Almost surely, 2202010211020 is an apocalyptic number.

202010211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202010211020 is an abundant number, since it is smaller than the sum of its proper divisors (236095947316).

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

202010211020 is a wasteful number, since it uses less digits than its factorization.

202010211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148962 (or 148960 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 202010211020 its reverse (20112010202), we get a palindrome (222122221222).

The spelling of 202010211020 in words is "two hundred two billion, ten million, two hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 2221 4442 8884 11105 22210 44420 68851 137702 146701 275404 293402 344255 586804 688510 733505 1377020 1467010 2934020 4547731 9095462 18190924 22738655 45477310 90954620 325822921 651645842 1303291684 1629114605 3258229210 6516458420 10100510551 20201021102 40402042204 50502552755 101005105510 202010211020