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48431313385 = 5713139765773
BaseRepresentation
bin101101000110101110…
…110011000111101001
311122000021001122010121
4231012232303013221
51243141404012020
634125443043241
73333113241250
oct550656630751
9148007048117
1048431313385
11195a3239634
129477670521
13474aa7b9b0
1424b626b797
1513d6ccdbaa
hexb46bb31e9

48431313385 has 32 divisors (see below), whose sum is σ = 72044017920. Its totient is φ = 30434842368.

The previous prime is 48431313383. The next prime is 48431313397. The reversal of 48431313385 is 58331313484.

It is not a de Polignac number, because 48431313385 - 21 = 48431313383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48431313383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 319642 + ... + 446131.

It is an arithmetic number, because the mean of its divisors is an integer number (2251375560).

Almost surely, 248431313385 is an apocalyptic number.

It is an amenable number.

48431313385 is a deficient number, since it is larger than the sum of its proper divisors (23612704535).

48431313385 is a wasteful number, since it uses less digits than its factorization.

48431313385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765937.

The product of its digits is 414720, while the sum is 43.

Subtracting 48431313385 from its reverse (58331313484), we obtain a palindrome (9900000099).

The spelling of 48431313385 in words is "forty-eight billion, four hundred thirty-one million, three hundred thirteen thousand, three hundred eighty-five".

Divisors: 1 5 7 13 35 65 91 139 455 695 973 1807 4865 9035 12649 63245 765773 3828865 5360411 9955049 26802055 49775245 69685343 106442447 348426715 532212235 745097129 1383751811 3725485645 6918759055 9686262677 48431313385