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5211525144 = 233724431569
BaseRepresentation
bin1001101101010000…
…11001000000011000
3111110012101220111210
410312220121000120
541133122301034
62221045023120
7243101142600
oct46650310030
914405356453
105211525144
112234851a81
1210153b4aa0
1365091c9b7
14376203c00
152077da8e9
hex136a19018

5211525144 has 48 divisors (see below), whose sum is σ = 15155969400. Its totient is φ = 1489006848.

The previous prime is 5211525131. The next prime is 5211525197. The reversal of 5211525144 is 4415251125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2214609 + ... + 2216960.

Almost surely, 25211525144 is an apocalyptic number.

It is an amenable number.

5211525144 is an abundant number, since it is smaller than the sum of its proper divisors (9944444256).

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

5211525144 is a wasteful number, since it uses less digits than its factorization.

5211525144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4431592 (or 4431581 counting only the distinct ones).

The product of its digits is 8000, while the sum is 30.

The square root of 5211525144 is about 72190.8937747691. The cubic root of 5211525144 is about 1733.7572060345.

Adding to 5211525144 its reverse (4415251125), we get a palindrome (9626776269).

The spelling of 5211525144 in words is "five billion, two hundred eleven million, five hundred twenty-five thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 49 56 84 98 147 168 196 294 392 588 1176 4431569 8863138 13294707 17726276 26589414 31020983 35452552 53178828 62041966 93062949 106357656 124083932 186125898 217146881 248167864 372251796 434293762 651440643 744503592 868587524 1302881286 1737175048 2605762572 5211525144