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101001020000 = 25545050051
BaseRepresentation
bin101111000010000100…
…0010100001001100000
3100122200221020102112112
41132010020110021200
53123322230120000
6114222122214452
710203620335106
oct1360410241140
9318627212475
10101001020000
113991a496261
12176a9054428
1396a8015c7a
144c61d95c76
15296206d235
hex1784214260

101001020000 has 60 divisors (see below), whose sum is σ = 248477708556. Its totient is φ = 40400400000.

The previous prime is 101001019993. The next prime is 101001020089. The reversal of 101001020000 is 20100101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2505026 + ... + 2545025.

Almost surely, 2101001020000 is an apocalyptic number.

101001020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101001020000 is an abundant number, since it is smaller than the sum of its proper divisors (147476688556).

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

101001020000 is an frugal number, since it uses more digits than its factorization.

101001020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050081 (or 5050058 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 5.

Adding to 101001020000 its reverse (20100101), we get a palindrome (101021120101).

The spelling of 101001020000 in words is "one hundred one billion, one million, twenty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 625 800 1000 1250 2000 2500 4000 5000 10000 20000 5050051 10100102 20200204 25250255 40400408 50500510 80800816 101001020 126251275 161601632 202002040 252502550 404004080 505005100 631256375 808008160 1010010200 1262512750 2020020400 2525025500 3156281875 4040040800 5050051000 6312563750 10100102000 12625127500 20200204000 25250255000 50500510000 101001020000