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70225728990 = 2353137746209
BaseRepresentation
bin100000101100111000…
…1111001010111011110
320201021011002122211120
41001121301321113132
52122310241311430
652132233031410
75034154563444
oct1013161712736
9221234078746
1070225728990
112786765865a
121173a555566
13681213c8c1
1435829b4b94
151c6034d610
hex1059c795de

70225728990 has 32 divisors (see below), whose sum is σ = 168595702560. Its totient is φ = 18720866304.

The previous prime is 70225728973. The next prime is 70225728997. The reversal of 70225728990 is 9982752207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70225728997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278995 + ... + 467214.

It is an arithmetic number, because the mean of its divisors is an integer number (5268615705).

Almost surely, 270225728990 is an apocalyptic number.

70225728990 is an abundant number, since it is smaller than the sum of its proper divisors (98369973570).

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

70225728990 is a wasteful number, since it uses less digits than its factorization.

70225728990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749356.

The product of its (nonzero) digits is 1270080, while the sum is 51.

The spelling of 70225728990 in words is "seventy billion, two hundred twenty-five million, seven hundred twenty-eight thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 3137 6274 9411 15685 18822 31370 47055 94110 746209 1492418 2238627 3731045 4477254 7462090 11193135 22386270 2340857633 4681715266 7022572899 11704288165 14045145798 23408576330 35112864495 70225728990