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101001001000000 = 2656101001001
BaseRepresentation
bin10110111101110000100000…
…110010010101110001000000
3111020121121020102022000121211
4112331300200302111301000
5101214300022224000000
6554451115212055504
730163036650225523
oct2675604062256100
9436547212260554
10101001001000000
112a200313a791a2
12b3b2806a64594
13444847990bb7a
141ad2690186bba
15ba2403d637ba
hex5bdc20c95c40

101001001000000 has 98 divisors (see below), whose sum is σ = 250526622397874. Its totient is φ = 40400400000000.

The previous prime is 101001000999973. The next prime is 101001001000033. The reversal of 101001001000000 is 100100101.

It can be written as a sum of positive squares in 7 ways, for example, as 100435833845824 + 565167154176 = 10021768^2 + 751776^2 .

It is a Harshad number since it is a multiple of its sum of digits (4).

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 49500501 + ... + 51500500.

Almost surely, 2101001001000000 is an apocalyptic number.

101001001000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101001001000000 is an abundant number, since it is smaller than the sum of its proper divisors (149525621397874).

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

101001001000000 is an frugal number, since it uses more digits than its factorization.

101001001000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101001043 (or 101001008 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 4.

Adding to 101001001000000 its reverse (100100101), we get a palindrome (101001101100101).

The spelling of 101001001000000 in words is "one hundred one trillion, one billion, one million", and thus it is an aban number.

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 160 200 250 320 400 500 625 800 1000 1250 1600 2000 2500 3125 4000 5000 6250 8000 10000 12500 15625 20000 25000 31250 40000 50000 62500 100000 125000 200000 250000 500000 1000000 101001001 202002002 404004004 505005005 808008008 1010010010 1616016016 2020020020 2525025025 3232032032 4040040040 5050050050 6464064064 8080080080 10100100100 12625125125 16160160160 20200200200 25250250250 32320320320 40400400400 50500500500 63125625625 80800800800 101001001000 126251251250 161601601600 202002002000 252502502500 315628128125 404004004000 505005005000 631256256250 808008008000 1010010010000 1262512512500 1578140640625 2020020020000 2525025025000 3156281281250 4040040040000 5050050050000 6312562562500 10100100100000 12625125125000 20200200200000 25250250250000 50500500500000 101001001000000