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7542925044 = 223628577087
BaseRepresentation
bin1110000011001011…
…11110011011110100
3201110200100021221020
413001211332123310
5110421442100134
63244251021140
7354630543054
oct70145763364
921420307836
107542925044
11322086a256
12156613a7b0
1393293a075
14517ac7564
152e2310b49
hex1c197e6f4

7542925044 has 12 divisors (see below), whose sum is σ = 17600158464. Its totient is φ = 2514308344.

The previous prime is 7542925031. The next prime is 7542925067. The reversal of 7542925044 is 4405292457.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 7542924987 and 7542925005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314288532 + ... + 314288555.

It is an arithmetic number, because the mean of its divisors is an integer number (1466679872).

Almost surely, 27542925044 is an apocalyptic number.

It is an amenable number.

7542925044 is an abundant number, since it is smaller than the sum of its proper divisors (10057233420).

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

7542925044 is a wasteful number, since it uses less digits than its factorization.

7542925044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628577094 (or 628577092 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The square root of 7542925044 is about 86850.0146459400. The cubic root of 7542925044 is about 1961.1610714012.

The spelling of 7542925044 in words is "seven billion, five hundred forty-two million, nine hundred twenty-five thousand, forty-four".

Divisors: 1 2 3 4 6 12 628577087 1257154174 1885731261 2514308348 3771462522 7542925044