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1030123002020 = 225772287101789
BaseRepresentation
bin11101111110110000001…
…11011001100010100100
310122110221001011110220112
432333120013121202210
5113334142442031040
62105122034552152
7134265260021240
oct16773007314244
93573831143815
101030123002020
11367966641192
1214778a138658
13761a8c990a8
1437c02d4d420
151bbe108a365
hexefd81d98a4

1030123002020 has 48 divisors (see below), whose sum is σ = 2472353694720. Its totient is φ = 353176673664.

The previous prime is 1030123001977. The next prime is 1030123002043. The reversal of 1030123002020 is 202003210301.

It is a happy number.

It is a super-2 number, since 2×10301230020202 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1030123001986 and 1030123002004.

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, 10069286 + ... + 10171074.

It is an arithmetic number, because the mean of its divisors is an integer number (51507368640).

Almost surely, 21030123002020 is an apocalyptic number.

1030123002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030123002020 is an abundant number, since it is smaller than the sum of its proper divisors (1442230692700).

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

1030123002020 is a wasteful number, since it uses less digits than its factorization.

1030123002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174092 (or 174090 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 1030123002020 its reverse (202003210301), we get a palindrome (1232126212321).

The spelling of 1030123002020 in words is "one trillion, thirty billion, one hundred twenty-three million, two thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 72287 101789 144574 203578 289148 361435 407156 506009 508945 712523 722870 1012018 1017890 1425046 1445740 2024036 2035780 2530045 2850092 3562615 5060090 7125230 10120180 14250460 7358021443 14716042886 29432085772 36790107215 51506150101 73580214430 103012300202 147160428860 206024600404 257530750505 515061501010 1030123002020