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47215077031 = 3137118734679
BaseRepresentation
bin101011111110001111…
…001110011010100111
311111212111111102111201
4223332033032122213
51233144024431111
633405034543331
73261014350543
oct537617163247
9144774442451
1047215077031
1119029753221
129198297b47
1345b5ac1205
1423dc912a23
1513651376c1
hexafe3ce6a7

47215077031 has 16 divisors (see below), whose sum is σ = 50099005440. Its totient is φ = 44418356640.

The previous prime is 47215076983. The next prime is 47215077061. The reversal of 47215077031 is 13077051274.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 47215077031 - 217 = 47214945959 is a prime.

It is a super-2 number, since 2×472150770312 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47215077061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1344150 + ... + 1378828.

It is an arithmetic number, because the mean of its divisors is an integer number (3131187840).

Almost surely, 247215077031 is an apocalyptic number.

47215077031 is a deficient number, since it is larger than the sum of its proper divisors (2883928409).

47215077031 is a wasteful number, since it uses less digits than its factorization.

47215077031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35934.

The product of its (nonzero) digits is 41160, while the sum is 37.

The spelling of 47215077031 in words is "forty-seven billion, two hundred fifteen million, seventy-seven thousand, thirty-one".

Divisors: 1 31 37 1147 1187 34679 36797 43919 1075049 1283123 1361489 39776813 41163973 1276083163 1523067001 47215077031