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145471305996 = 22331578579341
BaseRepresentation
bin1000011101111011000…
…0111111100100001100
3111220111010221000121000
42013132300333210030
54340411123242441
6150454550540300
713336625461512
oct2073660774414
9456433830530
10145471305996
115676a83a335
122423a067690
131094426a273
1470801364b2
153bb62242b6
hex21dec3f90c

145471305996 has 48 divisors (see below), whose sum is σ = 379550090080. Its totient is φ = 48181573440.

The previous prime is 145471305979. The next prime is 145471305997. The reversal of 145471305996 is 699503174541.

145471305996 is a `hidden beast` number, since 1 + 4 + 5 + 47 + 1 + 3 + 0 + 599 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (145471305997) 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, 4272715 + ... + 4306626.

Almost surely, 2145471305996 is an apocalyptic number.

It is an amenable number.

145471305996 is an abundant number, since it is smaller than the sum of its proper divisors (234078784084).

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

145471305996 is a wasteful number, since it uses less digits than its factorization.

145471305996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8579511 (or 8579503 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 54.

The spelling of 145471305996 in words is "one hundred forty-five billion, four hundred seventy-one million, three hundred five thousand, nine hundred ninety-six".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 157 314 471 628 942 1413 1884 2826 4239 5652 8478 16956 8579341 17158682 25738023 34317364 51476046 77214069 102952092 154428138 231642207 308856276 463284414 926568828 1346956537 2693913074 4040869611 5387826148 8081739222 12122608833 16163478444 24245217666 36367826499 48490435332 72735652998 145471305996