Search a number
-
+
88972139950 = 2521779442799
BaseRepresentation
bin101001011011100100…
…1110001110110101110
322111122121210000012121
41102313021301312232
52424203331434300
6104512341423154
76266545466011
oct1226711616656
9274577700177
1088972139950
11348074a9681
12152b070aaba
13850bbac175
1444405bb378
1524aaee581a
hex14b7271dae

88972139950 has 12 divisors (see below), whose sum is σ = 165488180400. Its totient is φ = 35588855960.

The previous prime is 88972139939. The next prime is 88972139951. The reversal of 88972139950 is 5993127988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88972139951) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 889721350 + ... + 889721449.

It is an arithmetic number, because the mean of its divisors is an integer number (13790681700).

Almost surely, 288972139950 is an apocalyptic number.

88972139950 is a deficient number, since it is larger than the sum of its proper divisors (76516040450).

88972139950 is a wasteful number, since it uses less digits than its factorization.

88972139950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779442811 (or 1779442806 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 61.

The spelling of 88972139950 in words is "eighty-eight billion, nine hundred seventy-two million, one hundred thirty-nine thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 50 1779442799 3558885598 8897213995 17794427990 44486069975 88972139950