Base | Representation |
---|---|
bin | 101000111001101… |
… | …0010110000101000 |
3 | 10112122102011210211 |
4 | 1101303102300220 |
5 | 10302313310210 |
6 | 344103150504 |
7 | 46003133110 |
oct | 12163226050 |
9 | 3478364724 |
10 | 1372400680 |
11 | 644758a42 |
12 | 323745434 |
13 | 18b437411 |
14 | d03aa040 |
15 | 8074238a |
hex | 51cd2c28 |
1372400680 has 32 divisors (see below), whose sum is σ = 3529031040. Its totient is φ = 470537280.
The previous prime is 1372400663. The next prime is 1372400683. The reversal of 1372400680 is 860042731.
It is not an unprimeable number, because it can be changed into a prime (1372400683) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2450436 + ... + 2450995.
It is an arithmetic number, because the mean of its divisors is an integer number (110282220).
Almost surely, 21372400680 is an apocalyptic number.
1372400680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1372400680 is an abundant number, since it is smaller than the sum of its proper divisors (2156630360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1372400680 is a wasteful number, since it uses less digits than its factorization.
1372400680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4901449 (or 4901445 counting only the distinct ones).
The product of its (nonzero) digits is 8064, while the sum is 31.
The square root of 1372400680 is about 37045.9266316825. The cubic root of 1372400680 is about 1111.2888958925.
The spelling of 1372400680 in words is "one billion, three hundred seventy-two million, four hundred thousand, six hundred eighty".
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