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2001021015230 = 252909402117107
BaseRepresentation
bin11101000111100110001…
…001011001010010111110
321002021222121001210112222
4131013212021121102332
5230241042334441410
64131131212525342
7264366110663606
oct35074611312276
97067877053488
102001021015230
117016a0218726
12283989a80852
13116906c4bab3
146cbc830bc06
15370b7960955
hex1d1e62594be

2001021015230 has 32 divisors (see below), whose sum is σ = 3604182734880. Its totient is φ = 799887507840.

The previous prime is 2001021015211. The next prime is 2001021015263. The reversal of 2001021015230 is 325101201002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2001021015199 and 2001021015208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116962337 + ... + 116979443.

It is an arithmetic number, because the mean of its divisors is an integer number (112630710465).

Almost surely, 22001021015230 is an apocalyptic number.

2001021015230 is a deficient number, since it is larger than the sum of its proper divisors (1603161719650).

2001021015230 is a wasteful number, since it uses less digits than its factorization.

2001021015230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24044.

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 2001021015230 its reverse (325101201002), we get a palindrome (2326122216232).

The spelling of 2001021015230 in words is "two trillion, one billion, twenty-one million, fifteen thousand, two hundred thirty".

Divisors: 1 2 5 10 2909 4021 5818 8042 14545 17107 20105 29090 34214 40210 85535 171070 11697089 23394178 49764263 58485445 68787247 99528526 116970890 137574494 248821315 343936235 497642630 687872470 200102101523 400204203046 1000510507615 2001021015230