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1201007600800 = 255272291056481
BaseRepresentation
bin10001011110100001101…
…000011010010010100000
311020211000021200112102121
4101132201220122102200
5124134130421211200
62315422452554024
7152525042111500
oct21364150322240
94224007615377
101201007600800
11423387531527
1217491b022914
13893402866b7
14421b4293a00
15213933bde1a
hex117a1a1a4a0

1201007600800 has 216 divisors, whose sum is σ = 3528258981660. Its totient is φ = 397574553600.

The previous prime is 1201007600761. The next prime is 1201007600839. The reversal of 1201007600800 is 80067001021.

It is an interprime number because it is at equal distance from previous prime (1201007600761) and next prime (1201007600839).

It can be written as a sum of positive squares in 6 ways, for example, as 177648762256 + 1023358838544 = 421484^2 + 1011612^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 608560 + ... + 1665040.

Almost surely, 21201007600800 is an apocalyptic number.

1201007600800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201007600800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1764129490830).

1201007600800 is an abundant number, since it is smaller than the sum of its proper divisors (2327251380860).

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

1201007600800 is a wasteful number, since it uses less digits than its factorization.

1201007600800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056544 (or 1056524 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The spelling of 1201007600800 in words is "one trillion, two hundred one billion, seven million, six hundred thousand, eight hundred".