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2030001221950 = 2521321657144983
BaseRepresentation
bin11101100010100101100…
…000000111000100111110
321012001210021102211112121
4131202211200013010332
5231224420303100300
64152323015153154
7266443215453322
oct35424540070476
97161707384477
102030001221950
11712a11849999
122895173757ba
13119574c66700
1470377135982
1537c11c9881a
hex1d8a580713e

2030001221950 has 72 divisors (see below), whose sum is σ = 4091086309968. Its totient is φ = 749081399040.

The previous prime is 2030001221947. The next prime is 2030001221951. The reversal of 2030001221950 is 591221000302.

It is a happy number.

It is a super-2 number, since 2×20300012219502 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2030001221951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13929159 + ... + 14074141.

It is an arithmetic number, because the mean of its divisors is an integer number (56820643194).

Almost surely, 22030001221950 is an apocalyptic number.

2030001221950 is an abundant number, since it is smaller than the sum of its proper divisors (2061085088018).

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

2030001221950 is a wasteful number, since it uses less digits than its factorization.

2030001221950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146678 (or 146660 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The spelling of 2030001221950 in words is "two trillion, thirty billion, one million, two hundred twenty-one thousand, nine hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 169 325 338 650 845 1657 1690 3314 4225 8285 8450 16570 21541 41425 43082 82850 107705 144983 215410 280033 289966 538525 560066 724915 1077050 1400165 1449830 1884779 2800330 3624575 3769558 7000825 7249150 9423895 14001650 18847790 24502127 47119475 49004254 94238950 122510635 240236831 245021270 480473662 612553175 1201184155 1225106350 2402368310 3123078803 6005920775 6246157606 12011841550 15615394015 31230788030 40600024439 78076970075 81200048878 156153940150 203000122195 406000244390 1015000610975 2030001221950