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20203343088 = 2437113942649
BaseRepresentation
bin10010110100001101…
…101000110011110000
31221011000011011112020
4102310031220303300
5312334023434323
613140431431440
71313441403615
oct226415506360
957130134466
1020203343088
118628295765
123aba085580
131b9c8627a6
14d992d850c
157d3a35ae3
hex4b4368cf0

20203343088 has 80 divisors (see below), whose sum is σ = 53309088000. Its totient is φ = 6591674880.

The previous prime is 20203343081. The next prime is 20203343089. The reversal of 20203343088 is 88034330202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203343081) 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, 452388 + ... + 495036.

It is an arithmetic number, because the mean of its divisors is an integer number (666363600).

Almost surely, 220203343088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20203343088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26654544000).

20203343088 is an abundant number, since it is smaller than the sum of its proper divisors (33105744912).

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

20203343088 is a wasteful number, since it uses less digits than its factorization.

20203343088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42870 (or 42864 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The spelling of 20203343088 in words is "twenty billion, two hundred three million, three hundred forty-three thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 71 139 142 213 278 284 417 426 556 568 834 852 1112 1136 1668 1704 2224 3336 3408 6672 9869 19738 29607 39476 42649 59214 78952 85298 118428 127947 157904 170596 236856 255894 341192 473712 511788 682384 1023576 2047152 3028079 5928211 6056158 9084237 11856422 12112316 17784633 18168474 23712844 24224632 35569266 36336948 47425688 48449264 71138532 72673896 94851376 142277064 145347792 284554128 420902981 841805962 1262708943 1683611924 2525417886 3367223848 5050835772 6734447696 10101671544 20203343088