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15000070000 = 24541500007
BaseRepresentation
bin11011111100001001…
…01110011101110000
31102201101021111201011
431332010232131300
5221210004220000
610520235320304
71040500330336
oct157604563560
942641244634
1015000070000
1163a816a673
122aa75b0094
131550871b86
14a24241b56
155cbd2a2ba
hex37e12e770

15000070000 has 50 divisors (see below), whose sum is σ = 36316693688. Its totient is φ = 6000024000.

The previous prime is 15000069983. The next prime is 15000070013. The reversal of 15000070000 is 7000051.

It is a tau number, because it is divible by the number of its divisors (50).

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 740004 + ... + 760003.

Almost surely, 215000070000 is an apocalyptic number.

15000070000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15000070000 is an abundant number, since it is smaller than the sum of its proper divisors (21316623688).

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

15000070000 is an equidigital number, since it uses as much as digits as its factorization.

15000070000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500035 (or 1500014 counting only the distinct ones).

The product of its (nonzero) digits is 35, while the sum is 13.

Adding to 15000070000 its reverse (7000051), we get a palindrome (15007070051).

The spelling of 15000070000 in words is "fifteen billion, seventy thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 625 1000 1250 2000 2500 5000 10000 1500007 3000014 6000028 7500035 12000056 15000070 24000112 30000140 37500175 60000280 75000350 120000560 150000700 187500875 300001400 375001750 600002800 750003500 937504375 1500007000 1875008750 3000014000 3750017500 7500035000 15000070000