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13002011020 = 2254173217207
BaseRepresentation
bin11000001101111101…
…01111000110001100
31020120010120121001201
430012332233012030
5203112003323040
65550102115244
7640126161445
oct140676570614
936503517051
1013002011020
115572329359
12262a41bb24
1312c292715b
148b4b302cc
155116eca9a
hex306faf18c

13002011020 has 48 divisors (see below), whose sum is σ = 28353463488. Its totient is φ = 5004426240.

The previous prime is 13002011017. The next prime is 13002011027. The reversal of 13002011020 is 2011020031.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 13002010988 and 13002011006.

It is not an unprimeable number, because it can be changed into a prime (13002011027) 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, 48744 + ... + 168463.

It is an arithmetic number, because the mean of its divisors is an integer number (590697156).

Almost surely, 213002011020 is an apocalyptic number.

13002011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13002011020 is an abundant number, since it is smaller than the sum of its proper divisors (15351452468).

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

13002011020 is a wasteful number, since it uses less digits than its factorization.

13002011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217330 (or 217328 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 13002011020 its reverse (2011020031), we get a palindrome (15013031051).

The spelling of 13002011020 in words is "thirteen billion, two million, eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 41 73 82 146 164 205 292 365 410 730 820 1460 2993 5986 11972 14965 29930 59860 217207 434414 868828 1086035 2172070 4344140 8905487 15856111 17810974 31712222 35621948 44527435 63424444 79280555 89054870 158561110 178109740 317122220 650100551 1300201102 2600402204 3250502755 6501005510 13002011020