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988470240 = 25354383577
BaseRepresentation
bin111010111010101…
…101101111100000
32112212222111020220
4322322231233200
54011022021430
6242030203040
733331600302
oct7272555740
92485874226
10988470240
11467a6935a
12237053480
13129a31244
14953c9972
155bba5110
hex3aeadbe0

988470240 has 192 divisors, whose sum is σ = 3230067456. Its totient is φ = 253919232.

The previous prime is 988470209. The next prime is 988470277. The reversal of 988470240 is 42074889.

It is a super-3 number, since 3×9884702403 (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 988470192 and 988470201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1712832 + ... + 1713408.

It is an arithmetic number, because the mean of its divisors is an integer number (16823268).

Almost surely, 2988470240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 988470240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1615033728).

988470240 is an abundant number, since it is smaller than the sum of its proper divisors (2241597216).

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

988470240 is a wasteful number, since it uses less digits than its factorization.

988470240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721 (or 713 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 988470240 is about 31439.9465648401. The cubic root of 988470240 is about 996.1418807251.

The spelling of 988470240 in words is "nine hundred eighty-eight million, four hundred seventy thousand, two hundred forty".