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12505550703480 = 233251071631991723
BaseRepresentation
bin1011010111111010110011…
…1010000100101101111000
31122021112000022220202202100
42311332230322010231320
53114342331440002410
642332545400103400
72430332130051012
oct265765472045570
948245008822670
1012505550703480
113a91635397a4a
12149b7ab764b60
136c93647c4993
143133b40971b2
1516a470edb8c0
hexb5face84b78

12505550703480 has 192 divisors, whose sum is σ = 41274576120960. Its totient is φ = 3283377617664.

The previous prime is 12505550703409. The next prime is 12505550703551. The reversal of 12505550703480 is 8430705550521.

12505550703480 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 55 + 50 + 70 + 3 + 480 = 666.

It is an interprime number because it is at equal distance from previous prime (12505550703409) and next prime (12505550703551).

It is a super-2 number, since 2×125055507034802 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5282899 + ... + 7274621.

It is an arithmetic number, because the mean of its divisors is an integer number (214971750630).

Almost surely, 212505550703480 is an apocalyptic number.

12505550703480 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 12505550703480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20637288060480).

12505550703480 is an abundant number, since it is smaller than the sum of its proper divisors (28769025417480).

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

12505550703480 is a wasteful number, since it uses less digits than its factorization.

12505550703480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992010 (or 1992003 counting only the distinct ones).

The product of its (nonzero) digits is 840000, while the sum is 45.

The spelling of 12505550703480 in words is "twelve trillion, five hundred five billion, five hundred fifty million, seven hundred three thousand, four hundred eighty".