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1381606487244 = 223289613703447
BaseRepresentation
bin10100000110101110001…
…010011111010011001100
311220002011112100112102200
4110012232022133103030
5140114012230042434
62534411245521500
7201550332242304
oct24065612372314
94802145315380
101381606487244
11492a32930985
121a3921273290
13a0391cc6a09
144ac27826604
1525e13475199
hex141ae29f4cc

1381606487244 has 72 divisors (see below), whose sum is σ = 3537400819680. Its totient is φ = 454617453312.

The previous prime is 1381606487201. The next prime is 1381606487257. The reversal of 1381606487244 is 4427846061831.

1381606487244 is a `hidden beast` number, since 1 + 3 + 8 + 1 + 606 + 4 + 8 + 7 + 24 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1612329 + ... + 2315775.

It is an arithmetic number, because the mean of its divisors is an integer number (49130566940).

Almost surely, 21381606487244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1381606487244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1768700409840).

1381606487244 is an abundant number, since it is smaller than the sum of its proper divisors (2155794332436).

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

1381606487244 is a wasteful number, since it uses less digits than its factorization.

1381606487244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704159 (or 704154 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The spelling of 1381606487244 in words is "one trillion, three hundred eighty-one billion, six hundred six million, four hundred eighty-seven thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 9 12 18 36 89 178 267 356 534 613 801 1068 1226 1602 1839 2452 3204 3678 5517 7356 11034 22068 54557 109114 163671 218228 327342 491013 654684 703447 982026 1406894 1964052 2110341 2813788 4220682 6331023 8441364 12662046 25324092 62606783 125213566 187820349 250427132 375640698 431213011 563461047 751281396 862426022 1126922094 1293639033 1724852044 2253844188 2587278066 3880917099 5174556132 7761834198 15523668396 38377957979 76755915958 115133873937 153511831916 230267747874 345401621811 460535495748 690803243622 1381606487244